The Screw,close Tolerance, cataloged under National Stock Number 5305-00-877-9304, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-877-9304 |
| Primary Part Number | NAS1202-18 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 1.386 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MODIFIED BY SPECIAL FEATURES |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OR STEEL COMP 4140 OR STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNJC |
| Head Diameter | 0.280 INCHES MINIMUM AND 0.337 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 |
|---|---|
| NAS1202-18 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1202-18 | Nor-Cal Supply Co (USA) |
| NAS1202-18 PRIMARY | Hi-Shear Corporation (USA) |
| NAS1202-18 PRIMARY | Apcom Inc (USA) |
| NAS1202-18 PRIMARY | Eriks Southwest Inc Dba Montclair Enterprises (USA) |
| Reference | Meaning |
|---|---|
| NAS1202-18 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1202-18 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1202-18 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1202-18 | 5/9 Secondary reference Collins Engineering Corp |
| NAS1202-18 | 3/1 Design control — primary reference U.S. Government activity |
| NAS1202-18 | 5/9 Secondary reference F and C Sales Inc |
| NAS1202-18 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1202-18 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-877-9304 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-877-9304 has 5 manufacturer part numbers on file: NAS1202-18 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1202-18 (Nor-Cal Supply Co), NAS1202-18 (Hi-Shear Corporation), NAS1202-18 (Apcom Inc), NAS1202-18 (Eriks Southwest Inc Dba Montclair Enterprises).
Key specifications for NAS1202-18: Fastener Length: 1.386 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM 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.