The Bolt,shoulder, cataloged under National Stock Number 5306-01-276-5803, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-276-5803 |
| Primary Part Number | 13083860-2 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Head Height | 1.000 INCHES NOMINAL IN |
| Fastener Length | 4.265 INCHES MINIMUM AND 4.311 INCHES MAXIMUM IN |
| Shoulder Length | 2.015 INCHES MINIMUM AND 2.045 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.987 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.515 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.125 INCHES NOMINAL IN |
| 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 |
|---|---|
| 13083860-2 PRIMARY | Lockheed Martin Corporation (USA) |
NSN 5306-01-276-5803 is a Bolt,shoulder, manufactured by Lockheed Martin Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-276-5803 has 1 manufacturer part number on file: 13083860-2 (Lockheed Martin Corporation).
Key specifications for 13083860-2: Head Height: 1.000 INCHES NOMINAL IN; Fastener Length: 4.265 INCHES MINIMUM AND 4.311 INCHES MAXIMUM IN; Shoulder Length: 2.015 INCHES MINIMUM AND 2.045 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.