1661-300903 — BREATHER

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

1661-300903: BREATHER.

The BREATHER is a the manufacturer industrial component. Key specifications include body_material: STEEL CORROSION RESISTING, overall_length: 3.0 INCHES NOMINAL IN, connection_type: THREADED, outside_diameter: 3.9 INCHES NOMINAL IN, special_features: NPS THREADED, end_item_identification: PRESSURE RELIEF CAP. This part is cataloged in the U.S.

Government catalog under NSN 4310-01-697-6610, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

1661-300903

NSN: 4310-01-697-6610
FSC: 4310 — Compressors and Vacuum Pumps
CAGE: 0BT82 — GITS MFG CO INC (USA)

SPECIFICATIONS

body_material	STEEL CORROSION RESISTING
overall_length	3.0 INCHES NOMINAL IN
connection_type	THREADED
outside_diameter	3.9 INCHES NOMINAL IN
special_features	NPS THREADED
end_item_identification	PRESSURE RELIEF CAP
part_name_assigned_by_controlling_agency	BREATHER
NSN	4310-01-697-6610

COMPONENT DIAGRAM

KEY FEATURES

•

OUTSIDE DIAMETER: 3.9 INCHES NOMINAL IN

•

CONNECTION TYPE: THREADED

•

BODY MATERIAL: STEEL CORROSION RESISTING

TECHNICAL CHARACTERISTICS

OUTSIDE DIAMETER	3.9 INCHES NOMINAL IN
CONNECTION TYPE	THREADED
OVERALL LENGTH	3.0 INCHES NOMINAL IN
BODY MATERIAL	STEEL CORROSION RESISTING
SPECIAL FEATURES	NPS THREADED
PART NAME ASSIGNED BY CONTROLLING AGENCY	BREATHER
END ITEM IDENTIFICATION	PRESSURE RELIEF CAP

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 4310-00-001-0059 4310-00-001-2044 4310-00-001-3477 4310-00-001-3493 4310-00-001-6194 4310-00-001-6381 4310-00-001-7755

SUBSTITUTES & CROSS-REFERENCES 1

SP606734Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 1661-300903?

1661-300903 is a BREATHER.

What parts can replace 1661-300903?

There is 1 known substitute for 1661-300903: SP606734. Substitute compatibility should be verified for your specific system.

What is the NSN for 1661-300903?

1661-300903 is cataloged in the U.S. Government catalog under NSN 4310-01-697-6610. This indicates validated use in U.S. government and defense supply chains.

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1661-300903 — BREATHER

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