PartsTable TECHNICAL DATA SHEET

NSN 4820-01-574-0915Government record, cited

Parts Kit, Safety Relief Valve4820-01-574-0915

NSN 4820-01-574-0915 · NIIN 015740915 · Part number 202-8841

Caterpillar Inc Div Caterpillar Defense · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 11083

Government record, cited

NSN 4820-01-574-0915 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-574-0915. Manufacturer of record part number: 202-8841.

Also searched as 4820-01-574-0915 · 4820015740915 · NIIN 015740915 · 01-574-0915 · FSC 4820 Valves, Nonpowered · CAGE 11083 · 202-8841 · 123-7531

Nearby stock numbers ← 4820-01-574-0807 Valve, Safety Relief · 4820-01-574-0923 Valve, Ball →

4820-01-574-0915 — Valves, Nonpowered

Features

Parts Kit,safety Relief Valve — FSC 4820
End Item Source: 11083
End Item Name: VALVE GP-MAIN CONTROL
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 4820-01-574-0915
NIIN: 015740915
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 202-8841
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-574-0915, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-574-0915
Primary Part Number	202-8841
Item Name	Parts Kit,safety Relief Valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
End Item Source	11083
End Item Name	VALVE GP-MAIN CONTROL

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
202-8841 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Reference documents

Reference	Meaning
123-7531	5/9 Secondary reference Caterpillar Inc Div Caterpillar Defense

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

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

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-574-0915?

NSN 4820-01-574-0915 is a Parts Kit,safety Relief Valve, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-574-0915?

NSN 4820-01-574-0915 has 1 manufacturer part number on file: 202-8841 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 202-8841?

Key specifications for 202-8841: End Item Source: 11083; End Item Name: VALVE GP-MAIN CONTROL; Special Features: USED ON 4820-01-526-7277 RELIEF VALVE, CARTRIDGE STYLE, P/N 217-4597; KIT INCLUDES SEALS AND NUT; NEXT HIGHER ASSEMBLY: VALVE-GP, MAIN CONTROL; Part Name Assigned by Controlling Agency: KIT-SEAL (RELIEF VALVE). 2 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-574-0915 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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