4 711 557PC4 — SEAT,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

4 711 557PC4: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 0.641 INCHES NOMINAL IN, style_designator: THREADED FLANGED, seat_angle_in_deg: 45.000 NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-623-8629, 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

4 711 557PC4

NSN: 4820-00-623-8629
FSC: 4820 — Valves, Nonpowered
CAGE: 35076 — AIRCRAFT APPLIANCES AND EQUIPMENT LIMITED DIV AIRCRAFT APPLIANCES AND EQUIPMENT LTD. (CAN)

SPECIFICATIONS

material	NICKEL ALLOY R-405 OVERALL
thread_class	2A SINGLE THREADED PORTION A
thread_length	0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter	0.641 INCHES NOMINAL IN
style_designator	THREADED FLANGED
seat_angle_in_deg	45.000 NOMINAL
nominal_thread_size	0.500 INCHES SINGLE THREADED PORTION IN
under_flange_height	0.375 INCHES NOMINAL IN
body_inside_diameter	0.312 INCHES NOMINAL IN
seating_surface_shape	ANGULAR
thread_series_designator	UNF SINGLE THREADED PORTION
flange_seat_to_disk_end_height	0.109 INCHES NOMINAL IN
NSN	4820-00-623-8629

COMPONENT DIAGRAM

KEY FEATURES

•

FLANGE SEAT TO DISK END HEIGHT: 0.109 INCHES NOMINAL IN

•

FLANGE DIAMETER: 0.641 INCHES NOMINAL IN

•

THREAD LENGTH: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN

•

STYLE DESIGNATOR: THREADED FLANGED

•

BODY INSIDE DIAMETER: 0.312 INCHES NOMINAL IN

•

NOMINAL THREAD SIZE: 0.500 INCHES SINGLE THREADED PORTION IN

•

UNDER FLANGE HEIGHT: 0.375 INCHES NOMINAL IN

•

THREAD CLASS: 2A SINGLE THREADED PORTION A

TECHNICAL CHARACTERISTICS

FLANGE SEAT TO DISK END HEIGHT	0.109 INCHES NOMINAL IN
FLANGE DIAMETER	0.641 INCHES NOMINAL IN
THREAD LENGTH	0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATOR	THREADED FLANGED
BODY INSIDE DIAMETER	0.312 INCHES NOMINAL IN
NOMINAL THREAD SIZE	0.500 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT	0.375 INCHES NOMINAL IN
THREAD CLASS	2A SINGLE THREADED PORTION A
MATERIAL	NICKEL ALLOY R-405 OVERALL
SEAT ANGLE IN DEG	45.000 NOMINAL

SUBSTITUTES & CROSS-REFERENCES 2

A-700-200-1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

50 081 234 600Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 4 711 557PC4?

4 711 557PC4 is a SEAT,VALVE.

What parts can replace 4 711 557PC4?

There are 2 known substitutes for 4 711 557PC4: A-700-200-1, 50 081 234 600. Substitute compatibility should be verified for your specific system.

What is the NSN for 4 711 557PC4?

4 711 557PC4 is cataloged in the U.S. Government catalog under NSN 4820-00-623-8629. This indicates validated use in U.S. government and defense supply chains.

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