The Screw,close Tolerance, cataloged under National Stock Number 5305-01-469-2871, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-469-2871 |
| Primary Part Number | TX1027D4-12A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Spline Minor Diameter | 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN |
| Fastener Length | 1.160 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN |
| Thread Length | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.249 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | LEFT-HAND |
| Grip Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 4400 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.358 INCHES MINIMUM AND 0.365 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 | Y |
| Part Number | Manufacturer |
|---|---|
| TX1027D4-12A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027D4-12A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027D4-12A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 11825D4-12A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027D4-12A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1027D4-12A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1027D4-12A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 3M1170D4-12A PRIMARY | The Boeing Company Div Defense (USA) |
| TX1027D4-12A PRIMARY | Hi-Shear Corporation (USA) |
| HP1170D4-12 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027D4-12A | 3/2 Design control — primary reference U.S. Government activity |
| TX1027D4-12A | 5/9 Secondary reference Sps Technologies Inc |
| TX1027D4-12A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-469-2871 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-469-2871 has 10 manufacturer part numbers on file: TX1027D4-12A (Sps Technologies, Llc Dba PB Fasteners), TX1027D4-12A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1027D4-12A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 11825D4-12A (Reid Products Inc. Dba Reid Products Inc), TX1027D4-12A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 5 more.
Key specifications for TX1027D4-12A: Spline Minor Diameter: 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN; Fastener Length: 1.160 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN; Thread Length: 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN; Criticality Code Justification: AGAV. 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.