The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-142-4867, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-142-4867 |
| Primary Part Number | 1525-21 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Head Height | 0.130 INCHES NOMINAL IN |
| Fastener Length | 2.660 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | CPT-8206 FSCM 13002 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.720 INCHES MINIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.139 INCHES MINIMUM AND 0.144 INCHES MAXIMUM FIRST HOLE IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | AMS 6427 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.310 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.560 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNS |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.490 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.440 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 |
|---|---|
| 1525-21 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1525-21 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 5306-00-142-4867 is a Bolt,internally Relieved Body, manufactured by Goodrich Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-142-4867 has 1 manufacturer part number on file: 1525-21 (Goodrich Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 5815-00-370-1493, 5910-00-835-2728, 6685-00-902-4921. Verify interchangeability with system specifications before substitution.
Key specifications for 1525-21: Head Height: 0.130 INCHES NOMINAL IN; Fastener Length: 2.660 INCHES NOMINAL IN; Surface Treatment Document and Classification: CPT-8206 FSCM 13002 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.720 INCHES MINIMUM IN. 20 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.