The Pin,shoulder,headless, cataloged under National Stock Number 5315-00-308-3568, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 18 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-308-3568 |
| Primary Part Number | 855621 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Surface Finish | 250.000 MICROINCHES OVERALL |
| First End Location | GROOVED END |
| First End Slot Width | 0.048 INCHES NOMINAL IN |
| Thread Length | 0.188 INCHES NOMINAL IN |
| First End Style | SLOTTED |
| Shank Length | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| First End Slot Depth | 0.062 INCHES NOMINAL IN |
| Shoulder Diameter | 0.375 INCHES NOMINAL IN |
| Internal Drive Style | SLOT |
| Second End Style | SQUARE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 855621 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5315-00-308-3568 is a Pin,shoulder,headless, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-308-3568 has 1 manufacturer part number on file: 855621 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 5365-00-362-6772. Verify interchangeability with system specifications before substitution.
Key specifications for 855621: Surface Finish: 250.000 MICROINCHES OVERALL; First End Location: GROOVED END; First End Slot Width: 0.048 INCHES NOMINAL IN; Thread Length: 0.188 INCHES NOMINAL IN. 18 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.