The Ring,retaining, cataloged under National Stock Number 5325-01-438-3305, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Mechanical Technology, Incorporated Div Mti Instruments Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-438-3305 |
| Primary Part Number | 788C364G1 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Mechanical Technology, Incorporated Div Mti Instruments Inc |
| Status | ACTIVE |
| Usage Design | EXTERNAL OR INTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | FED STD 66, COMP 316 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 15.188 INCHES NOMINAL IN |
| Major Thickness | 0.625 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN |
| Inside Diameter | 13.125 INCHES MINIMUM AND 13.126 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL COMP 316 |
| 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 |
|---|---|
| 788C364G1 PRIMARY | Mechanical Technology, Incorporated Div Mti Instruments Inc (USA) |
NSN 5325-01-438-3305 is a Ring,retaining, manufactured by Mechanical Technology, Incorporated Div Mti Instruments Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-438-3305 has 1 manufacturer part number on file: 788C364G1 (Mechanical Technology, Incorporated Div Mti Instruments Inc).
Key specifications for 788C364G1: Usage Design: EXTERNAL OR INTERNAL; End Style: 90 DEGREE PARALLEL; Material Document and Classification: FED STD 66, COMP 316 FED STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 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.