The Pin,grooved,headless, cataloged under National Stock Number 5315-00-276-4893, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5315-00-276-4893 |
| Primary Part Number | W304499 |
| Item Name | Pin,grooved,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| First End Location | BOTH ENDS |
| First End Style | OVAL |
| Intermediate Diameter | 0.100 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN |
| Hardness Rating | 99.0 ROCKWELL B NOMINAL OVERALL |
| Style Designator | CENTER GROOVE |
| Material Document and Classification | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Second End Relationship with First End | IDENTICAL |
| Pin Small End Diameter | 0.092 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL COMP B1112 OR STEEL COMP B1113 OVERALL |
| 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 |
|---|---|
| W304499 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 304499 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 5-3-8-5-8 | Groov-Pin Corp (USA) |
| Reference | Meaning |
|---|---|
| W304499 | 5/9 Secondary reference U.S. Government activity |
| 304499 | 5/9 Secondary reference U.S. Government activity |
NSN 5315-00-276-4893 is a Pin,grooved,headless, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-276-4893 has 3 manufacturer part numbers on file: W304499 (Northrop Grumman Systems Corporation), 304499 (Northrop Grumman Systems Corporation), 5-3-8-5-8 (Groov-Pin Corp).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-431-3779. Verify interchangeability with system specifications before substitution.
Key specifications for W304499: First End Location: BOTH ENDS; First End Style: OVAL; Intermediate Diameter: 0.100 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN; Hardness Rating: 99.0 ROCKWELL B NOMINAL OVERALL. 10 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.