The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-321-9046, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is M.s. Aerospace Inc. Dba Ms Aerospace Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-321-9046 |
| Primary Part Number | 4076478 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| Status | ACTIVE |
| Point Diameter | 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Head Height | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Point Length | 0.190 INCHES NOMINAL IN |
| Fastener Length | 1.190 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Thread Length | 0.650 INCHES NOMINAL IN |
| Material Document and Classification | AMS 7471 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM |
| First Diameter From Head | 0.329 INCHES MINIMUM AND 0.331 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.520 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.247 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Point Style | FLAT |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.095 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.490 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 | F |
| Part Number | Manufacturer |
|---|---|
| 4076478 PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 4076478 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1499396 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-01-321-9046 is a Bolt,externally Relieved Body, manufactured by M.s. Aerospace Inc. Dba Ms Aerospace Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-321-9046 has 2 manufacturer part numbers on file: 4076478 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 4076478 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4076478: Point Diameter: 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Head Height: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Point Length: 0.190 INCHES NOMINAL IN; Fastener Length: 1.190 INCHES MINIMUM AND 1.200 INCHES MAXIMUM 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.