The Grommet,metallic, cataloged under National Stock Number 5325-01-145-7575, 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 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-145-7575 |
| Primary Part Number | C9539-4-2 |
| Item Name | Grommet,metallic |
| 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 |
| Flange Outside Diameter | 0.485 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763 COND A FED SPEC 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5525 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Washer Style | FLAT |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Barrel Outside Diameter | 0.307 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN |
| Material | STEEL COMP 304 OR STEEL CORROSION RESISTING OR IRON ALLOY 660 OVERALL |
| Flange Style | FLANGE |
| Barrel Style | STRAIGHT ROUND TYPE |
| Barrel Height | 0.130 INCHES MINIMUM AND 0.140 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 |
|---|---|
| C9539-4-2 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| CA21038C-4-2 | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 120002-4-2 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 5325PL0719692 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C9539-4-2 | 3/2 Design control — primary reference U.S. Government activity |
| 5325PL1816100 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5325PL1740305 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5325-01-145-7575 is a Grommet,metallic, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-145-7575 has 3 manufacturer part numbers on file: C9539-4-2 (Monadnock Company, the Dba Lisi Aerospace), CA21038C-4-2 (Howmet Global Fastening Systems Inc. Div Tridair Products), 120002-4-2 (Monadnock Company, the Dba Lisi Aerospace).
Key specifications for C9539-4-2: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Flange Outside Diameter: 0.485 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763 COND A FED SPEC 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5525 ASSN STD 3RD MATERIAL RESPONSE OVERALL; Washer Style: FLAT. 10 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.