The Guide,spring, cataloged under National Stock Number 2995-00-918-2231, is classified within Federal Supply Class 2995 (Miscellaneous Engine Accessories, Aircraft) of the Engine Accessories group. The manufacturer of record is Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2995-00-918-2231 |
| Primary Part Number | 6-50371-1 |
| Item Name | Guide,spring |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Manufacturer | Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| Status | ACTIVE |
| FSC Application Data | VALVE ASSY,DIVERTER AND CHECK,ACFT ENGINE ACCESSORY |
| General Characteristics Item Description | STEEL,2.180 IN. EFFECTIVE LG,2.340 IN. LG O/A,0.440 IN. W HEAD,0.250 IN. OD SHANK,0.173 IN. ID SHANK,0.130 TO 0.135 IN. DIA HOLE THRU HEAD 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 |
|---|---|
| 6-50371-1 PRIMARY | Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector (USA) |
| Reference | Meaning |
|---|---|
| 6-50371-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 6-50371-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 2995-00-918-2231 is a Guide,spring, manufactured by Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector, classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
NSN 2995-00-918-2231 has 1 manufacturer part number on file: 6-50371-1 (Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector).
Key specifications for 6-50371-1: FSC Application Data: VALVE ASSY,DIVERTER AND CHECK,ACFT ENGINE ACCESSORY; General Characteristics Item Description: STEEL,2.180 IN. EFFECTIVE LG,2.340 IN. LG O/A,0.440 IN. W HEAD,0.250 IN. OD SHANK,0.173 IN. ID SHANK,0.130 TO 0.135 IN. DIA HOLE THRU HEAD IN; End Item Identification: 2995009108532 6-50327-503 VALVE. 2 specifications are 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.