The Bolt,shoulder, cataloged under National Stock Number 5306-00-003-3885, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Spiral Tool Corporation Dba Stc Industries. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-003-3885 |
| Primary Part Number | A51P60747-13 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Spiral Tool Corporation Dba Stc Industries |
| Status | ACTIVE |
| Head Height | 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Fastener Length | 2.102 INCHES NOMINAL IN |
| Shoulder Length | 1.550 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.452 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | G-3111,COMP 6AL-6V-2SN,FSC-26512 MFR REF SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Test Data Document | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 20 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.910 INCHES NOMINAL FIRST HOLE 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 |
|---|---|
| A51P60747-13 | Spiral Tool Corporation Dba Stc Industries (USA) |
| A51P60747-13 | S & L Aerospace Metals Llc (USA) |
| Reference | Meaning |
|---|---|
| A51P60747-13 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51P60747-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51P60747-13 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 5306-00-003-3885 is a Bolt,shoulder, manufactured by Spiral Tool Corporation Dba Stc Industries, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-003-3885 has 2 manufacturer part numbers on file: A51P60747-13 (Spiral Tool Corporation Dba Stc Industries), A51P60747-13 (S & L Aerospace Metals Llc).
Key specifications for A51P60747-13: Head Height: 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Fastener Length: 2.102 INCHES NOMINAL IN; Shoulder Length: 1.550 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM FIRST SHOULDER 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.