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2455-57PCA3 — REGULATOR,OXYGEN,DEMAND

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2455-57PCA3: REGULATOR,OXYGEN,DEMAND.

The REGULATOR,OXYGEN,DEMAND is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, face_type: STRAIGHT, bore_style: W/ KEYWAY BOTH ENDS, helix_angle: 4.9663 DEGREES, pitch_diameter: 2.2500 INCHES NOMINAL IN, pressure_angle: 14.5000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-272-6042, 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
2455-57PCA3
NSN: 3020-00-272-6042
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
face_typeSTRAIGHT
bore_styleW/ KEYWAY BOTH ENDS
helix_angle4.9663 DEGREES
pitch_diameter2.2500 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
style_designatorHUBLESS
face_nominal_width3.609 INCHES IN
keyway_nominal_width0.250 INCHES BOTH ENDS IN
thread_form_quantity1
bore_nominal_diameter0.998 INCHES BOTH ENDS IN
thread_form_directionRIGHT-HAND
NSN3020-00-272-6042
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REGULATOR,OXYGEN,DEMAND TITLE COMPONENT PN 2455-57PCA3 MFR REGULATOR,OXYGEN,DEMAN
KEY FEATURES
•
THREAD FORM DIRECTION: RIGHT-HAND
•
KEYWAY NOMINAL WIDTH: 0.250 INCHES BOTH ENDS IN
•
BORE NOMINAL DIAMETER: 0.998 INCHES BOTH ENDS IN
•
HELIX ANGLE: 4.9663 DEGREES
•
BORE STYLE: W/ KEYWAY BOTH ENDS
•
FACE TYPE: STRAIGHT
•
STYLE DESIGNATOR: HUBLESS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-N-994C,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
THREAD FORM DIRECTIONRIGHT-HAND
KEYWAY NOMINAL WIDTH0.250 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER0.998 INCHES BOTH ENDS IN
HELIX ANGLE4.9663 DEGREES
BORE STYLEW/ KEYWAY BOTH ENDS
FACE TYPESTRAIGHT
STYLE DESIGNATORHUBLESS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-994C,CLASS A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER2.2500 INCHES NOMINAL IN
THREAD FORM QUANTITY1
SUBSTITUTES & CROSS-REFERENCES 2
2455-57Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
532340Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2455-57PCA3?
2455-57PCA3 is a REGULATOR,OXYGEN,DEMAND.
What parts can replace 2455-57PCA3?
There are 2 known substitutes for 2455-57PCA3: 2455-57, 532340. Substitute compatibility should be verified for your specific system.
What is the NSN for 2455-57PCA3?
2455-57PCA3 is cataloged in the U.S. Government catalog under NSN 3020-00-272-6042. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.