The Bolt,machine, cataloged under National Stock Number 5306-00-425-8426, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-425-8426 |
| Primary Part Number | 4032220 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Fastener Length | 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Thread Length | 0.392 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.037 INCHES MINIMUM AND 0.057 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5758 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.870 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM 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 |
|---|---|
| 4032220 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4032220 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 4032220 | 5/9 Secondary reference M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| 4032220 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 4032220 | 5/9 Secondary reference Briarwood Fasteners, Inc. |
| 5306PL1495356 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-00-425-8426 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-425-8426 has 2 manufacturer part numbers on file: 4032220 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4032220 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4032220: Head Height: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN; Fastener Length: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN; Distance From Centerline to Flat: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Thread Length: 0.392 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN. 17 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.