The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-027-3748, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-027-3748 |
| Primary Part Number | 3237884-2 |
| Item Name | Heat Sink,electrical-Electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Unthreaded Mounting Hole Diameter | 0.140 INCHES NOMINAL SINGLE MOUNTING FACILITY 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 | JN |
| Weight | 0.0200 lbs |
| Cube | 0.0004 cu ft |
| Part Number | Manufacturer |
|---|---|
| 4512927 | Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S (DEU) |
| 60-11-4353-1661 | Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division (USA) |
| 60-11-4353-1661 | J.b.g. Metafix (FRA) |
| 2562254240 | Thales Avs France SAS (FRA) |
| 3522 500 26778 | Thales Nederland (NLD) |
| 3237884-2 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1201749-2 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 60-4305-1661 | Wacker Chemie Ag (DEU) |
| A1230428 | Thales Avs France SAS (FRA) |
| Reference | Meaning |
|---|---|
| 421-0330-003 | 5/2 Secondary reference U.S. Government activity |
| 86-812624-1 | C/1 Advisory reference — outside the item-of-supply concept General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
| 2562254240 | 5/9 Secondary reference Crouzet Sa |
NSN 5999-01-027-3748 is a Heat Sink,electrical-Electronic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-027-3748 has 9 manufacturer part numbers on file: 4512927 (Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S), 60-11-4353-1661 (Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division), 60-11-4353-1661 (J.b.g. Metafix), 2562254240 (Thales Avs France SAS), 3522 500 26778 (Thales Nederland) and 4 more.
1 possible match (shared part number, not a government interchangeability claim): 5970-01-090-1016. Verify interchangeability with system specifications before substitution.
Key specifications for 3237884-2: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 0.024 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.140 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Overall Length: 1.250 INCHES NOMINAL IN. 2 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.