The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-042-1753, 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 24 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-042-1753 |
| Primary Part Number | ATT1740D-11 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 1.830 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | LCP 1067,FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Concentric Hole Depth | 1.190 INCHES NOMINAL IN |
| Thread Length | 0.427 INCHES MINIMUM AND 0.466 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.111 INCHES NOMINAL FIRST HOLE IN |
| Criticality Code Justification | AAVH |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | MIL-S-5626,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.053 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.7485 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.375 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Shoulder Length | 1.310 INCHES MINIMUM AND 1.320 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.668 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.250 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 | Y |
| Part Number | Manufacturer |
|---|---|
| ATT1740D-11 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 1292922-105 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 1292922-105 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-042-1753 is a Bolt,internally Relieved Body, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-042-1753 has 2 manufacturer part numbers on file: ATT1740D-11 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 1292922-105 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co).
Key specifications for ATT1740D-11: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 1.830 INCHES NOMINAL IN; Surface Treatment Document and Classification: LCP 1067,FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Concentric Hole Depth: 1.190 INCHES NOMINAL IN. 24 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.