The Pin,shoulder,headed, cataloged under National Stock Number 5315-00-101-8542, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Vertex Modernization and Sustainment Llc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-101-8542 |
| Primary Part Number | 55A44B54-3 |
| Item Name | Pin,shoulder,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Vertex Modernization and Sustainment Llc |
| Status | ACTIVE |
| First Step Diameter | 0.214 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN |
| Under Head Length | 0.435 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Second Step Length | 0.100 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Pin Head Diameter | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-18732 HT-125 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT |
| Second Step Diameter | 0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Height | 0.030 INCHES NOMINAL IN |
| First Step Length | 0.335 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 431 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 55A44B54-3 PRIMARY | Vertex Modernization and Sustainment Llc (USA) |
| 55A44B54-3 | Gtc Machining Llc (USA) |
| 55A44B54-3 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 55A44B54-3 | Solo Enterprise Corp. Dba Solo Enterprise Corp (USA) |
| 55A44B54-3 | Klune Industries, Inc. Div Pcc Aerostructures, Spanish Fork Dba Klune Industries (USA) |
| 55A44B54-3 | Marvin Engineering Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| 67A79B54 | 5/9 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 55A44B54-3 | 5/9 Secondary reference U.S. Government activity |
| 55A44B54-3 | 5/9 Secondary reference Garrity Tool Company, Llc |
| 55A44B54-3 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5315-00-101-8542 is a Pin,shoulder,headed, manufactured by Vertex Modernization and Sustainment Llc, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-101-8542 has 6 manufacturer part numbers on file: 55A44B54-3 (Vertex Modernization and Sustainment Llc), 55A44B54-3 (Gtc Machining Llc), 55A44B54-3 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 55A44B54-3 (Solo Enterprise Corp. Dba Solo Enterprise Corp), 55A44B54-3 (Klune Industries, Inc. Div Pcc Aerostructures, Spanish Fork Dba Klune Industries) and 1 more.
Key specifications for 55A44B54-3: First Step Diameter: 0.214 INCHES MINIMUM AND 0.216 INCHES MAXIMUM IN; Under Head Length: 0.435 INCHES NOMINAL IN; First End Style: SQUARE; Second Step Length: 0.100 INCHES NOMINAL IN. 13 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.