The Contact,electrical, cataloged under National Stock Number 5999-00-263-2183, 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 Amphenol Corp Div Amphenol Aerospace Operations. Government technical data includes 17 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-263-2183 |
| Primary Part Number | 21-33011-21S |
| Item Name | Contact,electrical |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| Status | ACTIVE |
| Pin Diameter | 0.266 INCHES NOMINAL IN |
| Pin Accommodation Length | 0.372 INCHES NOMINAL IN |
| Overall Diameter | 0.280 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Mounting Method | FORCE FIT |
| Pin Accommodation Diameter | 0.036 INCHES NOMINAL IN |
| Style Designator | PIN CENTER CONTACT |
| Precious Material and Weight | 0.005 GOLD GRAINS, TROY |
| Retention Groove Diameter | 0.164 INCHES NOMINAL IN |
| Surface Treatment | GOLD BODY |
| Surface Treatment | GOLD CONTACT |
| Precious Material and Location | EXTERNAL SURFACES GOLD |
| Cable Entrance Diameter | 0.178 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY CONTACT |
| Terminal Type and Quantity | 1 PIN AXIALLY AT ONE END |
| Pin Length | 0.267 INCHES NOMINAL IN |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 312437-3 | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| 21-33011-21S PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
NSN 5999-00-263-2183 is a Contact,electrical, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-263-2183 has 2 manufacturer part numbers on file: 312437-3 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products), 21-33011-21S (Amphenol Corp Div Amphenol Aerospace Operations).
Key specifications for 21-33011-21S: Pin Diameter: 0.266 INCHES NOMINAL IN; Pin Accommodation Length: 0.372 INCHES NOMINAL IN; Overall Diameter: 0.280 INCHES NOMINAL IN; Precious Material: GOLD. 17 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.