The Holder,contact, cataloged under National Stock Number 5999-00-259-2138, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 9 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-00-259-2138 |
| Primary Part Number | 649419 |
| Item Name | Holder,contact |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED BASE SINGLE MOUNTING FACILITY |
| Distance Between Mounting Facility Centers | 3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN |
| Distance Between Mounting Facility Centers | 5.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP IN |
| Nominal Thread Size | 0.164 INCHES SINGLE MOUNTING FACILITY IN |
| Thread Class | 2B SINGLE MOUNTING FACILITY |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Special Markings | WARNING REGULATOR NOT TO BE LIFTED BY BRACKET OR COVER MARKED 6LC35 6LC33 6LC34 |
| Material | PLASTIC PHENOL FORMALDEHYDE (PMO) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| 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 | J |
| Part Number | Manufacturer |
|---|---|
| 649419 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5999-00-259-2138 is a Holder,contact, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-259-2138 has 1 manufacturer part number on file: 649419 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 649419: Mounting Facility Type and Quantity: 4 THREADED BASE SINGLE MOUNTING FACILITY; Distance Between Mounting Facility Centers: 3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP IN; Distance Between Mounting Facility Centers: 5.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP IN; Nominal Thread Size: 0.164 INCHES SINGLE MOUNTING FACILITY IN. 9 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.