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Activated Desiccant

NSN: 6850-00-159-4466 | Model: 4A

A chemical product specially prepared to increase the absorption capacity of the basic chemica (s) for the removal of moisture and capable of being restored to approximately its original condition.

NSN Properties and Flags
NATO Stock Number
6850-00-159-4466
DEMIL
NO
Quantity Within Each Unit Package
5.0 pounds
Sieve Particle Size Gradation Percentage
98.0 passed no. 4 and 97.0 retained no. 8
Active Ingredient
Sodium alumosilicate
Moisture Indicator Impregnation
Not included
Special Features
4 angstrom units, pore diameter
Reference Number Differentiating Characteristics
As differentiated by quantity within each unit package and unit package type

Pricing and Availability

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NSN 6850-00-159-4466 Datasheet

Supply Class (FSC):
Miscellaneous Chemical Specialties
Cross Reference:
  • 4A
  • 14465-3
  • 4A
  • 4A
Cage Codes:
  • Uop Molecular Sieve Dept A Joint (CAGE 0H8X3)
  • Spx Corporation (CAGE 08441)
  • Union Carbide Corp (CAGE 10217)
  • Union Carbide Corp (CAGE 36346)
Replacements:
  • 6850-00-159-4466 replaces 6850-00-735-5370
  • 6850-00-159-4466 replaces 6850-00-965-2515
Identification:
HMIC

Y - Indicates information is in the hazardous materials information resource system (hmirs).

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    048170 - Clay noi crushed ground/pulverized

  • WCC:

    635 - Chemicals, other than drugs or sundries

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    C - Chemical corps items and all other chemicals not covered in other classificatons. note: when an item has a chemical proper shipp

  • LTL:

    U - 50.0

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    H
  • Quantity per pack
    No qup
  • Unit of Measure
    Cn
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    R2200x-
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $852.08 to $1,420.13..
Does NSN 6850-00-159-4466 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, U.s. Marine Corps, Department Of The Navy, Spain, and Singapore
What is the NIIN of NSN 6850-00-159-4466?
001594466 or 00-159-4466
Does NSN 6850-00-159-4466 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 6850-00-159-4466?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 17, 1971
MSDS

Material Safety

MSDS BDCZS FORMED MOLECULAR SIEVE

Hazards

Effects of overexposure: eyes: irritating;skin: prolongd contact cause
irritng;inh: dries mucous membrane of nose & throat.

First Aid

First aid: eyes: flush w/lg amt of water for at least 15 min & get med
attn;skin: washw/non-alkaline soap.Get med attn if irritation
persist;inh: remove to fresh air.Ged med attn if symptoms
occurs;inh: if chocking occured,drink water.Consult a physician.

Chemical Properties

Hcc: n1
spec gravity: 2.1
ph: 10.4
solubility in water: negligible
appearance and odor: odorless,white or gray or tan crystalline/beads.

Reactivity

Stability indicator/materials to avoid: yes
hydrofluoric acid,strong acids or alkalies

Proper Disposal

Waste disposal methods: keep in closed containers pending
disposal.Handle & dispose in full compliance with all federal,state
& local ergs;mfr recommednds to landfill iaw local regulations.

disclaimer (provided with this information by the compiling agencies):
this information is formulated for use by elements of the department
of defense. the united states of america in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ingredients List

Ingred name: sodium aluminosilicate (cas #1344-00-9)
fraction by wt: 100%

MSDS BDCZT MOLECULAR SIEVE TYPE 4 A

Hazards

Routes of entry: inhalation: yes skin: yes ingestion: no
reports of carcinogenicity: ntp: no iarc: no osha: no
health hazards acute and chronic: acute-eyes: may cause
irritation,redness,
conjunctiva.Skin: irritation,redness.Inhalation: may cause irritation
of the nose & throat,cough & chest discomfort.Ingestion: no evidence
of adverse effects know n.Chronic-prolonged inhalation may cause
lung damage.

effects of overexposure: eyes/skin: irritation, redness. Inhalation:
irritation of nose and throat, cough, chest discomfort.

medical cond aggravated by exposure: breathing of dust may aggravate
asthma and inflammatory or fibrotic pulmonary disease.

First Aid

First aid: eye contact: flush with water for 15 minutes. Skin contact:
wash with soap and water. Inhalation: remove to fresh air.

ingestion: if large quantities are swallowed, then drink 2 glasses
of water. Indu ce vomiting if conscious.

Chemical Properties

Hcc: v7
spec gravity: 1.1, 2.0(cryst)
ph: 8-11
appearance and odor: beads, pellets, mesh, cake or powder; odorless

Reactivity

Stability indicator/materials to avoid: yes
sudden contact with high concentration of chemicals having high heats
of absorption such as olefins, hcl, etc.

stability condition to avoid: moisture (water) can cause rise in
temperature which may result in burn.

hazardous decomposition products: will come from the retained materials
by the sieve.In extreme heat, oxides of ingredients will form.

Proper Disposal

Waste disposal methods: disposal should be made in an approved landfill
according to all applicable federal, state and local laws and
regulations.

disclaimer (provided with this information by the compiling agencies):
this information is formulated for use by elements of the department
of defense. the united states of america in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ingredients List

Ingred name: sodium oxide
cas: 1313-59-3
fraction by wt:
other rec limits: none specified

ingred name: silica, amorphous, precipitated and gel
cas: 112945-52-5
rtecs #: vv7310000
fraction by wt:
other rec limits: none specified
osha pel: 6 mg/m3
acgih tlv: 10 mg/m3; 9293

ingred name: alpha-alumina (aluminum oxide) (epa lists only fibrous
forms) (sara iii)
cas: 1344-28-1
rtecs #: bd1200000
fraction by wt:
other rec limits: none specified
osha pel: 15 mg/m3 tdust
acgih tlv: 10 mg/m3 tdust; 9293

MSDS CKXNY FORMED MOLECULAR SIEVE

Hazards

Ld50 lc50 mixture: no data provided by manufacturer
routes of entry: inhalation: yes skin: no ingestion: no
health hazards acute and chronic: molecular sieves are non-fibrous,
synthetic aluminosilcates (zeolites) not to be confused with
natural zeolites. All studies to date indicate that they do not
cause signifigant health problems. When a ctivated, molecular
sieves act as a dessicant and can cause drying irritation of the
mucous membranes and skin in cases of severe exposure. The average
concentration of quartz in this material is less than 2% (maximum
is = 3.0). The primary route of entry is inhalation.

explanation of carcinogenicity: the most recent iarc classification of
crystalline quartz is that crystalline silica inhaled in the form
of quartz or cristobalite from occupational sources is carcinogenic
to humans (group 1). Quartz can cause cancer, silicosis or other
fibrotic lung disease with prolonged exposure.

effects of overexposure: avoid prolonged breahing of the dust or contact
of dust with the skin. The drying action of this material can cause
irritation of the mucous membranes of the nose and throat and
irritation of the skin .

medical cond aggravated by exposure: davison kknows of no medical
conditions abnormally aggravated by exposure to this product.

First Aid

First aid: eyes: immediately wash from eyes with large amounts of
water, occasionally lifting upper and lower eye lids. If irritation
occurs and persists, seek medical attention. Skin: wash with soap
and water. Ingestion: material will pass through body normally.

inhlation: remove to fresh air.

Chemical Properties

Hcc: b3
spec gravity: 2.1
ph: 10.3-10.5 slrry
solubility in water: insoluble
appearance and odor: white, gray, or tan, beads; odorless

Reactivity

Stability indicator/materials to avoid: yes
reacts with hf and strong acids or alkali.

stability condition to avoid: no data provided by manufacturer.

hazardous decomposition products: no data provided by manufacturer.

Proper Disposal

Waste disposal methods: landfill in accordance with local, state and
federal regulations. Cover to avoid blowing of dust.

Ingredients List

Ingred name: sodium oxide
cas: 1313-59-3
osha pel: not listed
acgih tlv: not listed

ingred name: calcium oxide
cas: 1305-78-8
rtecs #: ew3100000
osha pel: 5 mg/m3
acgih tlv: 2 mg/m3

ingred name: potassium oxide
cas: 12136-45-7
osha pel: not listed
acgih tlv: not listed