The Stud,turnlock Fastener, cataloged under National Stock Number 5325-00-400-8683, 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 11 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-400-8683 |
| Primary Part Number | CA1824-2 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Drive Type | SOCKET |
| Turnlock Stud Shank Style | STUD SHANK |
| Extension Length | 0.234 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.373 INCHES MAXIMUM IN |
| Securing Device Type | RING |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 OVERALL |
| Stud Thread Size and Series/type Designator | 0.164-32 UNIFIED NATIONAL COARSE (UNC) |
| Grip Length | 0.251 INCHES MINIMUM AND 0.343 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 |
|---|---|
| CA1824-2 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| VMUAS-00000131 | Esg Elektroniksystem- Und Logistik-Gmbh (DEU) |
| CA1824-2 | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| 9305840-103 | Ums Skeldar Sweden Ab (SWE) |
| Reference | Meaning |
|---|---|
| 860140-67 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 5223431-5 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 860140-67 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5325-00-400-8683 is a Stud,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-400-8683 has 4 manufacturer part numbers on file: CA1824-2 (Howmet Global Fastening Systems Inc. Div Tridair Products), VMUAS-00000131 (Esg Elektroniksystem- Und Logistik-Gmbh), CA1824-2 (Fairchild Fasteners Europe - Camloc Gmbh), 9305840-103 (Ums Skeldar Sweden Ab).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-439-7555. Verify interchangeability with system specifications before substitution.
Key specifications for CA1824-2: Drive Type: SOCKET; Turnlock Stud Shank Style: STUD SHANK; Extension Length: 0.234 INCHES NOMINAL IN; Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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.