The Bolt,shoulder, cataloged under National Stock Number 5306-01-299-1437, 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 21 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-299-1437 |
| Primary Part Number | 2186105 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Extended Washer Thickness | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Head Height | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Fastener Length | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN |
| Shoulder Length | 2.080 INCHES MINIMUM AND 2.120 INCHES MAXIMUM ALL SHOULDERS IN |
| Extended Washer Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.259 INCHES MINIMUM AND 0.260 INCHES MAXIMUM ALL SHOULDERS IN |
| Thread Length | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Hole Configuration Style | DOUBLE HEXAGON FLATS |
| Material Document and Classification | AMS7466 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM 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 |
|---|---|
| 2186105 | Howmet Global Fastening Systems Inc (USA) |
| 2186105 | Linread Ltd (GBR) |
| 2186105 | Morton Grinding, Inc Dba Morton Manufacturing (USA) |
| 2186105 | Bristol Industries, Llc (USA) |
| 2186105 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2186105 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 2186105 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 2186105 | 5/9 Secondary reference Textron Inc Camcar Div Sems Products Unit |
NSN 5306-01-299-1437 is a Bolt,shoulder, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-299-1437 has 7 manufacturer part numbers on file: 2186105 (Howmet Global Fastening Systems Inc), 2186105 (Linread Ltd), 2186105 (Morton Grinding, Inc Dba Morton Manufacturing), 2186105 (Bristol Industries, Llc), 2186105 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 2 more.
Key specifications for 2186105: Extended Washer Thickness: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Head Height: 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Fastener Length: 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN; Shoulder Length: 2.080 INCHES MINIMUM AND 2.120 INCHES MAXIMUM ALL SHOULDERS IN. 21 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.