The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-321-4939, 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 Naval Sea Systems Command. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5999-01-321-4939 |
| Primary Part Number | 5599756-1 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Cross-Sectional Shape Style | EMI |
| Aperture Diameter | 3.000 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Center to Center Distance Between Bolt Holes Along Length | 3.540 INCHES NOMINAL IN |
| Center to Center Distance Between Bolt Holes Along Width | 3.540 INCHES NOMINAL IN |
| Outside Edge to Bolt Hole Center Distance Along Length | 0.730 INCHES NOMINAL IN |
| Hole Diameter | 0.436 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN |
| Outside Edge to Bolt Hole Center Distance Along Width | 0.730 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| 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 |
|---|---|
| 5599756-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5599756-1 | 5/9 Secondary reference Warner Aircraft Engineering Dba Aircraft Engineering Corporati |
| 5599756-1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 5999-01-321-4939 is a Shielding Gasket,electronic, manufactured by Naval Sea Systems Command, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-321-4939 has 1 manufacturer part number on file: 5599756-1 (Naval Sea Systems Command).
Key specifications for 5599756-1: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR; Overall Length: 5.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: EMI. 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.
NSN 5999-01-321-4939 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.