The Bolt,shoulder, cataloged under National Stock Number 5306-00-377-3936, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 22 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-377-3936 |
| Primary Part Number | 4059356 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Head Height | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Fastener Length | 2.000 INCHES MINIMUM AND 2.040 INCHES MAXIMUM IN |
| Shoulder Length | 1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE GRIP |
| Shoulder Diameter | 0.2500 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.333 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | CHROMIUM GRIP |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.890 INCHES MINIMUM AND 1.930 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| 4059356 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4059356 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 4059356 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 4011896 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 4059356 | 5/9 Secondary reference Necchi Spa |
| 4059356 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| 5306PL1495259 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4059356 | 5/9 Secondary reference M.s. Aerospace Inc. Dba Ms Aerospace Inc |
| 4011896 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 4059356 | 5/9 Secondary reference U.S. Government activity |
| 4011896 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-377-3936 is a Bolt,shoulder, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-377-3936 has 2 manufacturer part numbers on file: 4059356 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4059356 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4059356: Head Height: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN; Fastener Length: 2.000 INCHES MINIMUM AND 2.040 INCHES MAXIMUM IN; Shoulder Length: 1.610 INCHES MINIMUM AND 1.630 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE GRIP. 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.