The Bolt,machine, cataloged under National Stock Number 5306-01-135-6031, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-135-6031 |
| Primary Part Number | 23000057 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Head Height | 3.85 MILLIMETERS MINIMUM AND 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM4.15 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6H6H |
| Fastener Length | 24.58 MILLIMETERS MINIMUM AND 24.58 MILLIMETERS MINIMUM AND 26.42 MILLIMETERS MAXIMUM26.42 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | G-4435-M CODE A CAGEC 63005 MFR REF SINGLE TREATMENT RESPONSE FASTENERG-4435-M CODE A CAGEC 63005 MFR REF SINGLE TREATMENT RESPONSE FASTENER |
| Thread Pitch in Millimeters | 1.01.0 |
| Thread Length | 18.0 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MINIMUM AND 20.0 MILLIMETERS MAXIMUM20.0 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | G-500-M,CAGEC 63005 MFR REF SINGLE MATERIAL RESPONSE FASTENERG-500-M,CAGEC 63005 MFR REF SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 6.0 MILLIMETERS6.0 MILLIMETERS MM |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | DISHED HEXAGONDISHED HEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Width Between Flats | 9.78 MILLIMETERS MINIMUM AND 9.78 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM10.00 MILLIMETERS MAXIMUM MM |
| Locking Feature | PATCH THREADSPATCH THREADS |
| Color | RED OR RED OR YELLOW LOCKING FEATUREYELLOW LOCKING FEATURE |
| Surface Treatment | PHOSPHATE FASTENERPHOSPHATE FASTENER |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Material | STEEL PROPERTY CLASS 8.8 FASTENER |
| Thread Series Designator | MM |
| 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 |
|---|---|
| 23000057 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 23000057 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5306-01-135-6031 is a Bolt,machine, manufactured by Rolls-Royce Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-135-6031 has 1 manufacturer part number on file: 23000057 (Rolls-Royce Corporation).
Key specifications for 23000057: Head Height: 3.85 MILLIMETERS MINIMUM AND 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM4.15 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6H6H; Fastener Length: 24.58 MILLIMETERS MINIMUM AND 24.58 MILLIMETERS MINIMUM AND 26.42 MILLIMETERS MAXIMUM26.42 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: G-4435-M CODE A CAGEC 63005 MFR REF SINGLE TREATMENT RESPONSE FASTENERG-4435-M CODE A CAGEC 63005 MFR REF SINGLE TREATMENT RESPONSE FASTENER. 18 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.