The Seal,plain, cataloged under National Stock Number 5330-01-577-2691, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is R P M Supply Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-577-2691 |
| Primary Part Number | M-2783 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | R P M Supply Corporation |
| Status | ACTIVE |
| Reference Data and Literature | MODEL: B40 SIZE: 4 IN. PAGE 13 AND 14 LIP-TYPE SEAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M-2783 | R P M Supply Corporation (USA) |
| Reference | Meaning |
|---|---|
| MODEL:B40 SIZE: 4 IN. ITEM 23 | 5/2 Secondary reference U.S. Government activity |
| M-2783 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-577-2691 is a Seal,plain, manufactured by R P M Supply Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-577-2691 has 1 manufacturer part number on file: M-2783 (R P M Supply Corporation).
Key specifications for M-2783: Reference Data and Literature: MODEL: B40 SIZE: 4 IN. PAGE 13 AND 14 LIP-TYPE SEAL IN; Part Name Assigned by Controlling Agency: SHAFT SEAL; End Item Identification: B40 4 IN. SELF-PRIMING CENTRIFUGAL PUMP IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.