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Quick Release Pin

NSN: 5315-00-065-7903 | Model: 51840
ITAR Registered seal

A headed fastening device having a solid cylindrical or tubular body with retaining ball or pin like deaden (s). The detent(s) is/are positioned and actuated by means of a spring, elastic or plunger. Plunger may be operated by thumb, cam or other means. May be furnished with a pull ring, pull and/or lock ring, attaching ring or hook.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Head Diameter
Between 0.760 inches and 0.860 inches
Shank Diameter
Between 0.4970 inches and 0.4985 inches
Ring Handle Diameter
1.435 inches
Detent Quantity
Lanyard Length
Between 6.750 inches and 7.250 inches
Actuation Method
Push button
Grip Length
Between 2.000 inches and 2.020 inches
Actuation Type
Pull and push
Shoulder To Head End Distance
1.850 inches
Pin Attachment Type
Retaining chain
Detent To Tapered End Distance
0.519 inches
Special Features
Button color red and handle color black
Steel comp 4130 spindle
Material Specification
MIL-S-6758 military specification single material response spindle
Surface Treatment
Cadmium spindle
Surface Treatment Specification
QQ-P-416, type 1, cl 3 federal specification single treatment response spindle
Style Designator
Ring handle

Pricing and Availability

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NSN 5315-00-065-7903 Datasheet

Supply Class (FSC):
Pins Machine Keys Nails
Cross Reference:
  • 51840
  • 58A46152
  • BL8SP20-1504-7W
  • BL8SP20-1504-7W
Cage Codes:
  • Avibank Mfg., Inc. (CAGE 84256)
  • Air Force Weapons Laboratory (CAGE 07873)
  • Satair A/s (CAGE R1120)

N - Indicates there is no data in the humors and the nsn is in a fsc not generally suspected of containing hazardous materials.


U - Precious metal content is unknown


- 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
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $191.04 to $318.40..
Does NSN 5315-00-065-7903 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 Air Force, Poland, Canada, Germany, Republic Of Korea, Greece, and Turkey
What is the NIIN of NSN 5315-00-065-7903?
000657903 or 00-065-7903
Does NSN 5315-00-065-7903 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5315-00-065-7903?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963