NSN 5315-01-256-5317 · NIIN 012565317 · Part number ST3M644-1
The Boeing Company Div Defense · FSC 5315 — Nails, Machine Keys, and Pins · FSG 53 — Hardware and Abrasives · CAGE 76301
Government record, cited
NSN 5315-01-256-5317 — this item is cataloged by the U.S. Government under National Stock Number 5315-01-256-5317. Manufacturer of record part number: ST3M644-1.
Also searched as5315-01-256-5317 ·
5315012565317 ·
NIIN 012565317 ·
01-256-5317 ·
FSC 5315 Nails, Machine Keys, and Pins · CAGE 76301 · ST3M644-1
Material Document and Classification: ASTM A580 COND B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Prong Length: 1.860 INCHES NOMINAL IN
Surface Treatment: PASSIVATE OVERALL
Material: STEEL COMP 316 OVERALL
1 manufacturer part number on file
Identification
NSN: 5315-01-256-5317
NIIN: 012565317
FSC: 5315 — Nails, Machine Keys, and Pins
FSG: 53 — Hardware and Abrasives
Primary part number: ST3M644-1
Manufacturer: The Boeing Company Div Defense
General Description
The Pin,lock, cataloged under National Stock Number 5315-01-256-5317, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5315-01-256-5317
Primary Part Number
ST3M644-1
Item Name
Pin,lock
FSC / FSG
5315 / 53 — Nails, Machine Keys, and Pins
Manufacturer
The Boeing Company Div Defense
Status
ACTIVE
Wire Stock Diameter
0.080 INCHES NOMINAL IN
Opening Width
0.420 INCHES NOMINAL IN
Material Document and Classification
ASTM A580 COND B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Other items in FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037
5315-00-000-1037 · Item name not on file
5315-00-000-1067
5315-00-000-1067 · Item name not on file
5315-00-000-1245
5315-00-000-1245 · Item name not on file
5315-00-000-1372
5315-00-000-1372 · Item name not on file
5315-00-000-1412
5315-00-000-1412 · Item name not on file
5315-00-001-1571
PIN
5315-00-001-1572
PIN,LINKAGE
5315-00-001-1602
5315-00-001-1602 · Item name not on file
Frequently Asked Questions
What is NSN 5315-01-256-5317?
NSN 5315-01-256-5317 is a Pin,lock, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
What part numbers are listed for NSN 5315-01-256-5317?
NSN 5315-01-256-5317 has 1 manufacturer part number on file: ST3M644-1 (The Boeing Company Div Defense).
What are the specifications of ST3M644-1?
Key specifications for ST3M644-1: Wire Stock Diameter: 0.080 INCHES NOMINAL IN; Opening Width: 0.420 INCHES NOMINAL IN; Material Document and Classification: ASTM A580 COND B ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Prong Length: 1.860 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5315-01-256-5317 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.