Helical Compression Spring Seat

NSN: 5340-00-071-5971 | Model: 20A74020

A circular item, usually having a flat or grooved flange, bos (es), and/or counterbore designed to accommodate the end of the spring. It is used to position the spring, but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer, helical compression spring. Excludes washer (1), (as modified) ; seat, ball socket and holder, spring. See also rotor, engine poppet valve.

NSN Properties and Flags

NATO Stock Number

5340-00-071-5971

DEMIL

Counterbore Diameter

Between 0.8140 inches and 0.8200 inches

Overall Height

Between 0.1500 inches and 0.1700 inches

First Step Diameter

Between 1.1800 inches and 1.1850 inches

First Step Length

0.0350 inches

Bore Diameter

Between 0.3670 inches and 0.3730 inches

Material Hardness Rating

Between 26.0 rockwell c and 32.0 rockwell c

Second End Diameter

Between 0.8570 inches and 0.8630 inches

End Diameter

Between 0.8650 inches and 0.8850 inches

Distance From End To First Step

Between 0.0550 inches and 0.0650 inches

Counterbore Length

0.0650 inches

Material

Steel

Material

Steel

Style Designator

Seat

Fsc Application Data

Fuel control, engine, aircraft

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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NSN 5340-00-071-5971 Datasheet

Supply Class (FSC):

Commercial Hardware

Cross Reference:

20A74020

Cage Codes:

Triumph Engine Control Systems, Llc (CAGE 11599)

Identification:

HMIC

P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

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:

095190 - Hardware, noi
WCC:

713 - Metal hardware
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:

B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
LTL:

W - Rating variable
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
J
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
9b-----
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $928.42 to $1,547.37..
Does NSN 5340-00-071-5971 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 Navy, and Portugal
What is the NIIN of NSN 5340-00-071-5971?
000715971 or 00-071-5971
Does NSN 5340-00-071-5971 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5340-00-071-5971?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jul 18, 1967