Head, First Stage4310-00-971-4922

NSN 4310-00-971-4922 · NIIN 009714922

FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors

Government record, cited

Also searched as 4310-00-971-4922 · 4310009714922 · NIIN 009714922 · 00-971-4922 · FSC 4310 Compressors and Vacuum Pumps · 873566 · 873566 · 873566 · 873566

Nearby stock numbers ← 4310-00-971-4919 Adapter, Crankshaft · 4310-00-971-4923 Cap, First Head →

Features

Head,first Stage — FSC 4310
General Characteristics Item Description: CONSISTS OF:INSERT,CRES-303,COND.A,SPEC QQ-S-763;HEAD,CASTING,AL,355-T6,CL 8,CO T6,SPEC QQ-A-596;PIN,HEAD,DRILL ROD;1.270 IN.L;3.226 IN.DIA;16 HOLES,EQ.SPA..275 IN.DIA;6 HOLES EQ.SPA..218 IN.DIA;4 HOLES EQ.SPA..1450 IN.DIA;8 HOLES EQ.SPA..315 IN.DIA;2 HOLES .0525 IN.DIA. IN

Identification

NSN: 4310-00-971-4922
NIIN: 009714922
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors

General Description

The Head,first Stage, cataloged under National Stock Number 4310-00-971-4922, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4310-00-971-4922
Item Name	Head,first Stage
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Status	ACTIVE
General Characteristics Item Description	CONSISTS OF:INSERT,CRES-303,COND.A,SPEC QQ-S-763;HEAD,CASTING,AL,355-T6,CL 8,CO T6,SPEC QQ-A-596;PIN,HEAD,DRILL ROD;1.270 IN.L;3.226 IN.DIA;16 HOLES,EQ.SPA..275 IN.DIA;6 HOLES EQ.SPA..218 IN.DIA;4 HOLES EQ.SPA..1450 IN.DIA;8 HOLES EQ.SPA..315 IN.DIA;2 HOLES .0525 IN.DIA. 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
873566	3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc
873566	5/9 Secondary reference Kidde-Fenwal, Llc
873566	5/9 Secondary reference Drs Environmental Systems Inc
873566	5/2 Secondary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4310 — Compressors and Vacuum Pumps

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

4310-00-000-0050

COMPRESSOR UNIT,RECIPROCATING

4310-00-001-0059

4310-00-001-0059 · Item name not on file

4310-00-001-2044

MOUNTING PAD,TANK,PRESSURE

4310-00-001-3477

PARTS KIT,VACUUM PUMP

4310-00-001-3493

VACUUM PUMP,ROTARY

4310-00-001-6194

4310-00-001-6194 · Item name not on file

4310-00-001-6381

4310-00-001-6381 · Item name not on file

4310-00-001-7755

PARTS KIT,VACUUM PUMP

Frequently Asked Questions

What is NSN 4310-00-971-4922?

NSN 4310-00-971-4922 is a Head,first Stage, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What are the specifications of 4310-00-971-4922?

Key specifications for 4310-00-971-4922: General Characteristics Item Description: CONSISTS OF:INSERT,CRES-303,COND.A,SPEC QQ-S-763;HEAD,CASTING,AL,355-T6,CL 8,CO T6,SPEC QQ-A-596;PIN,HEAD,DRILL ROD;1.270 IN.L;3.226 IN.DIA;16 HOLES,EQ.SPA..275 IN.DIA;6 HOLES EQ.SPA..218 IN.DIA;4 HOLES EQ.SPA..1450 IN.DIA;8 HOLES EQ.SPA..315 IN.DIA;2 HOLES .0525 IN.DIA. IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4310-00-971-4922 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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