PartsTable TECHNICAL DATA SHEET

NSN 4310-00-790-4547Government record, cited

Breather4310-00-790-4547

NSN 4310-00-790-4547 · NIIN 007904547 · Part number CQ-812

Curtis-Toledo, Inc. · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 55921

Government record, cited

NSN 4310-00-790-4547 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-790-4547. Manufacturer of record part number: CQ-812.

Also searched as 4310-00-790-4547 · 4310007904547 · NIIN 007904547 · 00-790-4547 · FSC 4310 Compressors and Vacuum Pumps · CAGE 55921 · CQ-812 · C0812

Nearby stock numbers ← 4310-00-790-4546 · 4310-00-790-4548 Plate, Reed Valve →

Features

Breather — FSC 4310
1 manufacturer part number on file
Manufacturer of record: Curtis-Toledo, Inc.

Identification

NSN: 4310-00-790-4547
NIIN: 007904547
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: CQ-812
Manufacturer: Curtis-Toledo, Inc.

General Description

The Breather, cataloged under National Stock Number 4310-00-790-4547, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtis-Toledo, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4310-00-790-4547
Primary Part Number	CQ-812
Item Name	Breather
FSC / FSG	4310 / 43 — Compressors and Vacuum Pumps
Manufacturer	Curtis-Toledo, Inc.
Status	ACTIVE

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
CQ-812 PRIMARY	Curtis-Toledo, Inc. (USA)

Reference documents

Reference	Meaning
C0812	5/9 Secondary reference Curtis-Toledo, Inc.

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 4310-00-790-4547?

NSN 4310-00-790-4547 is a Breather, manufactured by Curtis-Toledo, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What part numbers are listed for NSN 4310-00-790-4547?

NSN 4310-00-790-4547 has 1 manufacturer part number on file: CQ-812 (Curtis-Toledo, Inc.).

What are the specifications of CQ-812?

Key specifications for CQ-812: Overall Length: 1.594 INCHES MAXIMUM IN; Special Features: BLUE TEMPERED SWEDISH SPRING STEEL 0.0043 IN.THK,0.562 IN.W;W/2 HOLES 0.141 IN.DIA PUNCHED 0.281 IN.C TO C 0.141 IN.FROM LENGTHWISE EDGE AND 0.312 IN.FROM EDGE OF WIDTH IN; End Item Identification: COMPRESSER MODEL 96. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4310-00-790-4547 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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