Test Cap, Aircraft Maintenance4920-01-088-5537

NSN 4920-01-088-5537 · NIIN 010885537 · Part number GS15541-4

Hamilton Sundstrand Corporation Dba Collins Aerospace · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 73030

Government record, cited

NSN 4920-01-088-5537 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-088-5537. Manufacturer of record part number: GS15541-4.

Also searched as 4920-01-088-5537 · 4920010885537 · NIIN 010885537 · 01-088-5537 · FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 73030 · GS15541-4

Nearby stock numbers ← 4920-01-088-5525 Fixture, Aircraft Maintenance · 4920-01-088-5538 →

Features

Test Cap,aircraft Maintenance — FSC 4920
Nominal Overall Diameter: 3.312 INCHES IN
Nominal Overall Length: 0.500 INCHES IN
1 manufacturer part number on file
Manufacturer of record: Hamilton Sundstrand Corporation Dba Collins Aerospace

Identification

NSN: 4920-01-088-5537
NIIN: 010885537
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: GS15541-4
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace

General Description

The Test Cap,aircraft Maintenance, cataloged under National Stock Number 4920-01-088-5537, 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 Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4920-01-088-5537
Primary Part Number	GS15541-4
Item Name	Test Cap,aircraft Maintenance
FSC / FSG	4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment
Manufacturer	Hamilton Sundstrand Corporation Dba Collins Aerospace
Status	ACTIVE
Nominal Overall Diameter	3.312 INCHES IN
Nominal Overall Length	0.500 INCHES IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
GS15541-4 PRIMARY	Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)

No interchangeability data on file.

Other items in FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

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4920-00-001-1744 · Item name not on file

4920-00-001-1745

4920-00-001-1745 · Item name not on file

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4920-00-001-1746 · Item name not on file

4920-00-001-1747

4920-00-001-1747 · Item name not on file

4920-00-001-1748

4920-00-001-1748 · Item name not on file

Frequently Asked Questions

What is NSN 4920-01-088-5537?

NSN 4920-01-088-5537 is a Test Cap,aircraft Maintenance, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.

What part numbers are listed for NSN 4920-01-088-5537?

NSN 4920-01-088-5537 has 1 manufacturer part number on file: GS15541-4 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What are the specifications of GS15541-4?

Key specifications for GS15541-4: Nominal Overall Diameter: 3.312 INCHES IN; Nominal Overall Length: 0.500 INCHES IN; Special Features: SEALS WATER SEPARATOR OUTLET OF EVIRONMENTAL CONTROL SYSTEM DURING PROOF PRESSURE TESTING AND EXTERNAL AND INTERNAL LEAKAGE TESTS; C/O CLAMP,CAP,O RING; FOR 3.000 IN. PORT; MATL. 1018 STL IN; End Item Identification: F-16A/B ACFT GROUND SUPPORT EQUIPMENT A. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4920-01-088-5537 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.

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