The Bolt,shear, cataloged under National Stock Number 5306-01-671-4191, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Houston Precision Fasteners I Lp. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-671-4191 |
| Primary Part Number | 20-106-04008LY |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Houston Precision Fasteners I Lp |
| Status | ACTIVE |
| Extended Washer Thickness | 0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 0.995 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OR AMS2700 METHOD 1 TYPES 2 OR 8 CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.460 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN |
| Thread Length | 0.495 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5663 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5962 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Head Minor Diameter | 0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Grip Diameter | 0.2797 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 20-106-04008LY | Houston Precision Fasteners I Lp (USA) |
| 20-106-04008LY | Saturn Fasteners Inc (USA) |
| 20-106-04008LY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 20-106-04008LY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 20-106-04008LY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 20-106-04008LY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 20-106-04008LY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 20-106-04008LY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| 20-106-04008LY | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-671-4191 is a Bolt,shear, manufactured by Houston Precision Fasteners I Lp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-671-4191 has 8 manufacturer part numbers on file: 20-106-04008LY (Houston Precision Fasteners I Lp), 20-106-04008LY (Saturn Fasteners Inc), 20-106-04008LY (M.s. Aerospace Inc. Dba Ms Aerospace Inc), 20-106-04008LY (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 20-106-04008LY (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 3 more.
Key specifications for 20-106-04008LY: Extended Washer Thickness: 0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 0.995 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OR AMS2700 METHOD 1 TYPES 2 OR 8 CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 20 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.