The Bolt,shoulder, cataloged under National Stock Number 5306-01-179-9453, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-179-9453 |
| Primary Part Number | 1881B293 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Extended Washer Thickness | 0.030 INCHES NOMINAL IN |
| Head Height | 0.310 INCHES NOMINAL IN |
| Fastener Length | 7.640 INCHES NOMINAL IN |
| Shoulder Length | 6.890 INCHES NOMINAL FIRST SHOULDER IN |
| Extended Washer Diameter | 1.990 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.380 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.625 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | MIL-S-8844 CL 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.3750 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.935 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UN |
| 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 |
|---|---|
| 1881B293 | Es3 Prime Logistics Group Inc Dba Es3 Plg (USA) |
| 1881B293 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 1881B293 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1881B293 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 1881-293 | 5/9 Secondary reference Ace Precision Industries Inc |
| 1881-293 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 5306-01-179-9453 is a Bolt,shoulder, manufactured by Goodrich Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-179-9453 has 3 manufacturer part numbers on file: 1881B293 (Es3 Prime Logistics Group Inc Dba Es3 Plg), 1881B293 (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 1881B293 (Goodrich Corporation).
Key specifications for 1881B293: Extended Washer Thickness: 0.030 INCHES NOMINAL IN; Head Height: 0.310 INCHES NOMINAL IN; Fastener Length: 7.640 INCHES NOMINAL IN; Shoulder Length: 6.890 INCHES NOMINAL FIRST SHOULDER 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.