The Bolt,machine, cataloged under National Stock Number 5306-00-385-9227, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-385-9227 |
| Primary Part Number | ST2135-038 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | PWA 37-1,FSCM 77445 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.929 INCHES MINIMUM AND 0.952 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| ST2135038 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST2135-038 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| ST2135-038 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| ST2135-038 | 5/2 Secondary reference U.S. Government activity |
| 5306PL1495317 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-00-385-9227 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-385-9227 has 3 manufacturer part numbers on file: ST2135038 (Sps Technologies, Llc Dba PB Fasteners), ST2135-038 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), ST2135-038 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for ST2135-038: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN; Surface Treatment Document and Classification: PWA 37-1,FSCM 77445 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.929 INCHES MINIMUM AND 0.952 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.