The Contact,electrical, cataloged under National Stock Number 5999-01-420-8917, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-420-8917 |
| Primary Part Number | 5M2251-003S |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-G-45204,TI OR TII, GRADE C CLASS 1 OVER NICKEL UNDERPLATE MIL SPEC ALL TREATMENT RESPONSES BODY AND CONTACT |
| Overall Diameter | 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| Precious Material | GOLD |
| Mounting Method | FORCE FIT |
| Style Designator | SOCKET CRIMP CONTACT |
| Precious Material and Weight | 0.005 GOLD GRAINS, TROY |
| Surface Treatment | GOLD AND NICKEL BODY AND CONTACT |
| Precious Material and Location | GOLD OVER NICKEL UNDERPLATE ON ALL METAL PARTS. GOLD |
| Material | PLASTIC CONTACT INSULATION |
| Material | COPPER ALLOY CONTACT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | ZN |
| Weight | 0.0600 lbs |
| Cube | 0.0046 cu ft |
| Part Number | Manufacturer |
|---|---|
| 5M2251-003S PRIMARY | The Boeing Company Div Defense (USA) |
| 21-033197-003 | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
| Reference | Meaning |
|---|---|
| 21-33197-3 | 5/9 Secondary reference Amphenol Corp Div Amphenol Aerospace Operations |
| 10139750 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5999-01-420-8917 is a Contact,electrical, manufactured by The Boeing Company Div Defense, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-420-8917 has 2 manufacturer part numbers on file: 5M2251-003S (The Boeing Company Div Defense), 21-033197-003 (Amphenol Corp Div Amphenol Aerospace Operations).
Key specifications for 5M2251-003S: Surface Treatment Document and Classification: MIL-G-45204,TI OR TII, GRADE C CLASS 1 OVER NICKEL UNDERPLATE MIL SPEC ALL TREATMENT RESPONSES BODY AND CONTACT; Overall Diameter: 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN; Precious Material: GOLD; Mounting Method: FORCE FIT. 10 specifications are 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.