257AH — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

257AH: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: INCLUDED, material: COPPER ALLOY BODY, body_style: STRAIGHT THRU, furnished_items: CYLINDER GAGE AND DELIVERY GAGE, regulation_type: 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC, flow_control_device: DISK, BOTTOM GUIDED. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-171-9817, 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

257AH

NSN: 4820-00-171-9817
FSC: 4820 — Valves, Nonpowered
CAGE: 14011 — STANDARD WELDERS EQUIPMENT CORPORATION (USA)

SPECIFICATIONS

filter	INCLUDED
material	COPPER ALLOY BODY
body_style	STRAIGHT THRU
furnished_items	CYLINDER GAGE AND DELIVERY GAGE
regulation_type	1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
flow_control_device	DISK, BOTTOM GUIDED
valve_loading_method	SPRING
manual_control_method	TEE HANDLE
outlet_pressure_range	0.0 TO 100.0 CAMERA MOUNT
first_end_thread_class	2A A
second_end_seat_radius	0.281 INCHES NOMINAL IN
end_connection_quantity	2
NSN	4820-00-171-9817

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK, BOTTOM GUIDED

•

FIRST END THREAD DIRECTION: RIGHT-HAND

•

SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL

•

BODY STYLE: STRAIGHT THRU

•

REGULATION TYPE: 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC

•

FIRST END SEAT ANGLE IN DEG: 30.0

•

FIRST END THREAD CLASS: 2A A

•

FIRST END STYLE DESIGNATOR: INVERTED FLARE

TECHNICAL CHARACTERISTICS

FLOW CONTROL DEVICE	DISK, BOTTOM GUIDED
FIRST END THREAD DIRECTION	RIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST END	NOT IDENTICAL
BODY STYLE	STRAIGHT THRU
REGULATION TYPE	1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
FIRST END SEAT ANGLE IN DEG	30.0
FIRST END THREAD CLASS	2A A
FIRST END STYLE DESIGNATOR	INVERTED FLARE
END CONNECTION QUANTITY	2
OUTLET PRESSURE RANGE	0.0 TO 100.0 CAMERA MOUNT

SUBSTITUTES & CROSS-REFERENCES 3

MILR19180Reference document

Same NSN cross-reference

Reference document — Identification reference

SVTS252AHReference document

Same NSN cross-reference

Reference document — Secondary reference

7782411Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

Ready to buy 257AH?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is 257AH?

257AH is a VALVE,REGULATING,FLUID PRESSURE.

What parts can replace 257AH?

There are 3 known substitutes for 257AH: MILR19180, SVTS252AH, 7782411. Substitute compatibility should be verified for your specific system.

What is the NSN for 257AH?

257AH is cataloged in the U.S. Government catalog under NSN 4820-00-171-9817. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

257AH — VALVE,REGULATING,FLUID PRESSURE

Request a Quote — 257AH