The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-021-6832, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 19 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-021-6832 |
| Primary Part Number | 47421-1 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Width Across Flats | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 4.060 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN |
| Thread Length | 0.660 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 3.340 INCHES MINIMUM AND 3.400 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | BEVEL-CONICAL |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 210000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.428 INCHES MINIMUM AND 0.438 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 |
NSN 5306-01-021-6832 is a Bolt,internal Wrenching, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-021-6832 has 2 manufacturer part numbers on file: 47421-1 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 47421-1 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 8140-01-233-3181. Verify interchangeability with system specifications before substitution.
Key specifications for 47421-1: Width Across Flats: 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 4.060 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN; Thread Length: 0.660 INCHES MINIMUM AND 0.780 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.