The Housing,valve, cataloged under National Stock Number 2990-00-754-7987, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2990-00-754-7987 |
| Primary Part Number | 373973-2 |
| Item Name | Housing,valve |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| General Characteristics Item Description | MATL ALUMINUM ALLOY;0.540 IN. LG;2.156 IN. W;2.665 IN. H;FOUR 0.220 IN. DIA UNTHREADED MTG HOLES ON A2.156 IN. DIA BOLT CIRCLE;SEAL GROVE 1.700 IN. ROOT DIA;0.090 IN. GROVE W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 373973-2 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 373973-2 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 373973-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2990-00-754-7987 is a Housing,valve, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-754-7987 has 1 manufacturer part number on file: 373973-2 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 373973-2: General Characteristics Item Description: MATL ALUMINUM ALLOY;0.540 IN. LG;2.156 IN. W;2.665 IN. H;FOUR 0.220 IN. DIA UNTHREADED MTG HOLES ON A2.156 IN. DIA BOLT CIRCLE;SEAL GROVE 1.700 IN. ROOT DIA;0.090 IN. GROVE W IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.