The Pin,shoulder,headless, cataloged under National Stock Number 5315-00-858-6638, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-858-6638 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Shank Diameter | 0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.250 INCHES NOMINAL IN |
| First End Taper Length | 0.031 INCHES NOMINAL IN |
| First End Location | BOTH ENDS |
| Surface Treatment Document and Classification | MIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Second End Taper Angle | 15.0 DEGREES NOMINAL |
| Thread Length | 0.438 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 0.513 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.188 INCHES NOMINAL IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Shoulder Diameter | 0.750 INCHES NOMINAL IN |
| Second Shank Length | 0.766 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Second End Style | CHAMFERED |
| Thread Class | 2A A |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5315008586638 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| SMC414981 | 5/2 Secondary reference U.S. Government activity |
| 804009 | 3/2 Design control — primary reference U.S. Government activity |
| 5315008586638 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5315-00-858-6638 is a Pin,shoulder,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 2530-01-154-1257, 2530-01-161-2739, 2530-01-161-2740. Verify interchangeability with system specifications before substitution.
Key specifications for 5315-00-858-6638: Shank Diameter: 0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN; Second Shank Diameter: 0.250 INCHES NOMINAL IN; First End Taper Length: 0.031 INCHES NOMINAL IN; First End Location: BOTH ENDS. 23 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.