The Bolt,shear, cataloged under National Stock Number 5306-01-055-8791, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-055-8791 |
| Primary Part Number | NAS6204-27 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 2.043 INCHES MINIMUM AND 2.073 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.345 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS6204 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN |
| Width Between Flats | 0.429 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 | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| NAS6204-27 | Northrop Grumman Systems Corporation (USA) |
| NAS6204-27 | Goodrich Corporation Div Advanced Structures Landing Systems (USA) |
| NAS6204-27 | California Screw Products Corp. (USA) |
| NAS6204-27 | Mac Fasteners, Inc. Dba Mac Fasteners Inc (USA) |
| NAS6204-27 PRIMARY | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1497124 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| NAS6204-27 | 5/9 Secondary reference Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| NAS6204-27 | 5/9 Secondary reference Rkr Technologies, Ltd. Dba Rkr Technologies Ltd Div Rocket Air Supply |
| NAS6204-27 | 5/1 Secondary reference U.S. Government activity |
| NAS6204-27 | 5/9 Secondary reference Goodrich Corporation |
NSN 5306-01-055-8791 is a Bolt,shear, manufactured by Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-055-8791 has 5 manufacturer part numbers on file: NAS6204-27 (Northrop Grumman Systems Corporation), NAS6204-27 (Goodrich Corporation Div Advanced Structures Landing Systems), NAS6204-27 (California Screw Products Corp.), NAS6204-27 (Mac Fasteners, Inc. Dba Mac Fasteners Inc), NAS6204-27 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems).
Key specifications for NAS6204-27: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 2.043 INCHES MINIMUM AND 2.073 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.345 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN. 19 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.