The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-01-035-1979, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-035-1979 |
| Primary Part Number | CA18178 |
| Item Name | Receptacle,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Receptacle Overall Length | 0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN |
| Receptacle Thread Size and Series/type Designator | 0.438-20 UNF |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Turnlock Receptacle Style | RECEPTACLE |
| Surface Treatment | PASSIVATE OVERALL |
| Receptacle Height | 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Material | IRON ALLOY 660 STUD |
| Material | STEEL COMP 303 OR STEEL COMP 303SE RECEPTACLE |
| 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 |
|---|---|
| 9311540 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA) |
| CA18178 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 4128-0010 | Bae Systems Information & Electronic Systems Integration Inc. (USA) |
| CA18178 | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| 3915-0020 | Finnigan Corporation (USA) |
| CA18178 | Boeing Distribution Services X, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3915-0020 | 5/9 Secondary reference Bae Systems Information & Electronic Systems Integration Inc. |
| 5325PL2215513 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5325-01-035-1979 is a Receptacle,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-035-1979 has 6 manufacturer part numbers on file: 9311540 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament), CA18178 (Howmet Global Fastening Systems Inc. Div Tridair Products), 4128-0010 (Bae Systems Information & Electronic Systems Integration Inc.), CA18178 (Fairchild Fasteners Europe - Camloc Gmbh), 3915-0020 (Finnigan Corporation) and 1 more.
Key specifications for CA18178: Receptacle Overall Length: 0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN; Receptacle Thread Size and Series/type Designator: 0.438-20 UNF; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.