NSN 4920-01-048-1837 · NIIN 010481837 · Part number C18D21
Grimes Aerospace Company · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 72914
Government record, cited
NSN 4920-01-048-1837 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-048-1837. Manufacturer of record part number: C18D21.
Also searched as4920-01-048-1837 ·
4920010481837 ·
NIIN 010481837 ·
01-048-1837 ·
FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 72914 · C18D21
Functional Description: USED TO PROVIDE INTERFACE BETWEEN VALVE BLEED AIR INLET AND THE INLET PRESSURE REGULATOR AND GAGE DIURING OVERHAUL OF E.C.S. BLEED AIR SYSTEM HEAT EXCHANGER VALVE
1 manufacturer part number on file
Manufacturer of record: Grimes Aerospace Company
Identification
NSN: 4920-01-048-1837
NIIN: 010481837
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: C18D21
Manufacturer: Grimes Aerospace Company
General Description
The Adapter,pressure Test, cataloged under National Stock Number 4920-01-048-1837, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Grimes Aerospace Company. 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. Current acquisition status: Active.
USED TO PROVIDE INTERFACE BETWEEN VALVE BLEED AIR INLET AND THE INLET PRESSURE REGULATOR AND GAGE DIURING OVERHAUL OF E.C.S. BLEED AIR SYSTEM HEAT EXCHANGER VALVE
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Frequently Asked Questions
What is NSN 4920-01-048-1837?
NSN 4920-01-048-1837 is a Adapter,pressure Test, manufactured by Grimes Aerospace Company, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
What part numbers are listed for NSN 4920-01-048-1837?
NSN 4920-01-048-1837 has 1 manufacturer part number on file: C18D21 (Grimes Aerospace Company).
What are the specifications of C18D21?
Key specifications for C18D21: Functional Description: USED TO PROVIDE INTERFACE BETWEEN VALVE BLEED AIR INLET AND THE INLET PRESSURE REGULATOR AND GAGE DIURING OVERHAUL OF E.C.S. BLEED AIR SYSTEM HEAT EXCHANGER VALVE; End Item Identification: E-3A AWACS ACFT AGE. A. 1 specification is documented in the U.S. Government catalog.
Is NSN 4920-01-048-1837 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.