The Bolt,shear, cataloged under National Stock Number 5306-01-288-9346, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-288-9346 |
| Primary Part Number | SS5025-04H012 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Head Height | 0.164 INCHES NOMINAL IN |
| Fastener Length | 1.235 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.485 INCHES NOMINAL IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | DOUBLE HEXAGON FLATS |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6485 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP H11 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.046 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 |
|---|---|
| SS5025-04H012 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| SS5025-04H012 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| SS5025-04H012 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| SS5025-04H012 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SS5025-04H012 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SS5025-04H012 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| SS5025-04H012 | 5/2 Secondary reference U.S. Government activity |
| SS5025-04H012 | 5/9 Secondary reference Nylok Llc |
NSN 5306-01-288-9346 is a Bolt,shear, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-288-9346 has 6 manufacturer part numbers on file: SS5025-04H012 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), SS5025-04H012 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), SS5025-04H012 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), SS5025-04H012 (Sps Technologies, Llc Dba PB Fasteners), SS5025-04H012 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
Key specifications for SS5025-04H012: Head Height: 0.164 INCHES NOMINAL IN; Fastener Length: 1.235 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.485 INCHES NOMINAL IN. 22 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.