The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-032-5571, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-032-5571 |
| Primary Part Number | 134C973H01 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Fastener Length | 1.060 INCHES NOMINAL IN |
| Thread Length | 0.190 INCHES MINIMUM IN |
| Material Document and Classification | QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.179 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.680 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 134C973H01 | R and S Machine Co (USA) |
| 134C973H01 | Ace G & M of Texas Inc. Dba Ace G & M of Texas (USA) |
| 134C973H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 134C973H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-00-032-5571 is a Bolt,externally Relieved Body, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-032-5571 has 3 manufacturer part numbers on file: 134C973H01 (R and S Machine Co), 134C973H01 (Ace G & M of Texas Inc. Dba Ace G & M of Texas), 134C973H01 (Northrop Grumman Support Services Corp).
Key specifications for 134C973H01: Fastener Length: 1.060 INCHES NOMINAL IN; Thread Length: 0.190 INCHES MINIMUM IN; Material Document and Classification: QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; First Diameter From Head: 0.179 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN. 11 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.