801-6556655-A6 — SEAT,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

801-6556655-A6: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.752 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 1.375 INCHES NOMINAL IN, hardness_rating: 115.0 ROCKWELL R NOMINAL SEAT, special_features: A/K/A SEAT, LOWER. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-442-0439, 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

801-6556655-A6

NSN: 4820-01-442-0439
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)

SPECIFICATIONS

material	PLASTIC POLYTETRAFLUOROETHYLENE SEAT
thread_class	3A SINGLE THREADED PORTION A
thread_length	0.752 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height	1.375 INCHES NOMINAL IN
hardness_rating	115.0 ROCKWELL R NOMINAL SEAT
special_features	A/K/A SEAT, LOWER
style_designator	PLAIN
nominal_thread_size	5.250 INCHES SINGLE THREADED PORTION IN
body_inside_diameter	4.625 INCHES NOMINAL IN
body_outside_diameter	5.140 INCHES NOMINAL IN
seating_surface_shape	FLAT
end_item_identification	SEAWOLF CLASS SSN
NSN	4820-01-442-0439

COMPONENT DIAGRAM

KEY FEATURES

•

BODY OUTSIDE DIAMETER: 5.140 INCHES NOMINAL IN

•

THREAD LENGTH: 0.752 INCHES NOMINAL SINGLE THREADED PORTION IN

•

HARDNESS RATING: 115.0 ROCKWELL R NOMINAL SEAT

•

STYLE DESIGNATOR: PLAIN

•

BODY INSIDE DIAMETER: 4.625 INCHES NOMINAL IN

•

NOMINAL THREAD SIZE: 5.250 INCHES SINGLE THREADED PORTION IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	1.375 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER	5.140 INCHES NOMINAL IN
THREAD LENGTH	0.752 INCHES NOMINAL SINGLE THREADED PORTION IN
HARDNESS RATING	115.0 ROCKWELL R NOMINAL SEAT
STYLE DESIGNATOR	PLAIN
BODY INSIDE DIAMETER	4.625 INCHES NOMINAL IN
NOMINAL THREAD SIZE	5.250 INCHES SINGLE THREADED PORTION IN
SPECIAL FEATURES	A/K/A SEAT, LOWER
THREAD CLASS	3A SINGLE THREADED PORTION A
END ITEM IDENTIFICATION	SEAWOLF CLASS SSN

SUBSTITUTES & CROSS-REFERENCES 4

801-6556655 FIND A6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2643-1002-63 FN A6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2643-1002-63Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

6556655Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 801-6556655-A6?

801-6556655-A6 is a SEAT,VALVE.

What parts can replace 801-6556655-A6?

There are 4 known substitutes for 801-6556655-A6: 801-6556655 FIND A6, 2643-1002-63 FN A6, 2643-1002-63 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 801-6556655-A6?

801-6556655-A6 is cataloged in the U.S. Government catalog under NSN 4820-01-442-0439. This indicates validated use in U.S. government and defense supply chains.

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801-6556655-A6 — SEAT,VALVE

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