The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-049-0730, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Monadnock Company, the Dba Lisi Aerospace. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-01-049-0730 |
| Primary Part Number | 112031-120 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.381 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Material Document and Classification | MIL-F-5591 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Grip Length | 0.307 INCHES MINIMUM AND 0.317 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 |
|---|---|
| 112031-120 PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
| FIT7078R5A120M PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| FIT7078R5A120E PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| TST3M472R5A120M PRIMARY | Trico Manufacturing Inc. (USA) |
| ST3M472R5A120M | The Boeing Company Div Defense (USA) |
| TST3M472R5A120E PRIMARY | Trico Manufacturing Inc. (USA) |
| Reference | Meaning |
|---|---|
| 112031120 | 5/9 Secondary reference U.S. Government activity |
| 10119202 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST3M472R5A120E | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5325-01-049-0730 is a Stud,turnlock Fastener, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-049-0730 has 6 manufacturer part numbers on file: 112031-120 (Monadnock Company, the Dba Lisi Aerospace), FIT7078R5A120M (Fastener Innovation Technology, Inc. Dba F I T), FIT7078R5A120E (Fastener Innovation Technology, Inc. Dba F I T), TST3M472R5A120M (Trico Manufacturing Inc.), ST3M472R5A120M (The Boeing Company Div Defense) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-659-4709. Verify interchangeability with system specifications before substitution.
Key specifications for 112031-120: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: SLOTTED; Material Accommodated Thickness: 0.381 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK. 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.