The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-948-3240, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Deutschland Ltd & Co Kg. Government technical data includes 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-948-3240 |
| Primary Part Number | 1-140-168-02 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rolls-Royce Deutschland Ltd & Co Kg |
| Status | ACTIVE |
| Head Height | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Fastener Length | 2.950 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Precious Material | SILVER |
| Thread Length | 0.550 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 35.5 ROCKWELL C MAXIMUM OVERALL |
| First Diameter From Head | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.520 INCHES MINIMUM AND 1.560 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 2.360 INCHES MINIMUM AND 2.400 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.316 INCHES MINIMUM AND 0.319 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.250 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Surface Treatment | SILVER OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OVERALL |
| Third Diameter From Head | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 1-140-168-02 | Rolls-Royce Deutschland Ltd & Co Kg (DEU) |
| Reference | Meaning |
|---|---|
| 1-140-168-02 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 1-140-168-02 | 3/2 Design control — primary reference U.S. Government activity |
| 1-140-168-02 | 5/9 Secondary reference Brys Instrument Corp |
NSN 5306-00-948-3240 is a Bolt,externally Relieved Body, manufactured by Rolls-Royce Deutschland Ltd & Co Kg, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-948-3240 has 1 manufacturer part number on file: 1-140-168-02 (Rolls-Royce Deutschland Ltd & Co Kg).
Key specifications for 1-140-168-02: Head Height: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN; Fastener Length: 2.950 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Precious Material: SILVER. 22 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.