The Retainer, cataloged under National Stock Number 5840-01-092-5648, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5840-01-092-5648 |
| Primary Part Number | 121B756H01 |
| Item Name | Retainer |
| FSC / FSG | 5840 / 58 — Radar Equipment, Except Airborne |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL BRASS; O/A DIM. 0.241 IN. LG; ID 0.785 IN.; OD 1.030 IN. 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 |
|---|---|
| 121B756H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| 121B756H01 | Spencer Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 121B756H01 | 3/9 Design control — primary reference U.S. Government activity |
| 121B756H01 | 5/9 Secondary reference Tillman Tool Company Inc Dba Tillman Tool |
NSN 5840-01-092-5648 is a Retainer, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
NSN 5840-01-092-5648 has 2 manufacturer part numbers on file: 121B756H01 (Northrop Grumman Support Services Corp), 121B756H01 (Spencer Industries Inc).
Key specifications for 121B756H01: General Characteristics Item Description: MATERIAL BRASS; O/A DIM. 0.241 IN. LG; ID 0.785 IN.; OD 1.030 IN. IN. 1 specification is 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.