The Grommet,nonmetallic, cataloged under National Stock Number 5325-00-641-3822, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 10 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-641-3822 |
| Primary Part Number | 91-255-3 |
| Item Name | Grommet,nonmetallic |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Grommet Style | ROUND |
| Flange Thickness | 0.074 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-M-20693 TY1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Specification/standard Data | 80205-NAS577 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Large Flange Outside Diameter | 0.503 INCHES MAXIMUM IN |
| Groove Outside Diameter | 0.429 INCHES NOMINAL IN |
| Grommet Construction Type | SPLIT |
| Material | PLASTIC OVERALL |
| Groove Width | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Hole Diameter | 0.375 INCHES NOMINAL 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 |
|---|---|
| 91-255-3 | Raytheon Company Dba Raytheon Co (USA) |
| 91-255-3 | Raytheon Company (USA) |
| NMC557-6A | Nmc Group, Inc. (USA) |
| 1716725-7 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 295202-6A | 5/9 Secondary reference Monadnock Company, the Dba Lisi Aerospace |
| 12-290-00-005 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| NAS557-64 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| NAS557-6A | 3/2 Design control — primary reference U.S. Government activity |
| 91-255-3 | 5/9 Secondary reference Raytheon Company Div Corp |
| 10119149 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5325-00-641-3822 is a Grommet,nonmetallic, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-641-3822 has 4 manufacturer part numbers on file: 91-255-3 (Raytheon Company Dba Raytheon Co), 91-255-3 (Raytheon Company), NMC557-6A (Nmc Group, Inc.), 1716725-7 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 91-255-3: Overall Height: 0.219 INCHES NOMINAL IN; Grommet Style: ROUND; Flange Thickness: 0.074 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Material Document and Classification: MIL-M-20693 TY1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.