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258557-1 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

258557-1: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: ALUMINUM BODY, body_style: TEE, temp_rating: -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF, lens_quantity: 15, overall_width: 2.910 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-134-8242, 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
258557-1
NSN: 4820-00-134-8242
NIINs: 001348242, 001485876
FSC: 4820 — Valves, Nonpowered
CAGE: 80212 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialALUMINUM BODY
body_styleTEE
temp_rating-65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF
lens_quantity15
overall_width2.910 INCHES NOMINAL IN
overall_height2.937 INCHES NOMINAL IN
overall_length5.127 INCHES NOMINAL IN
regulation_typeAUTOMATIC SINGLE STAGE
style_designatorMULTIPLE STRIP TYPE
flow_control_deviceDIAPHRAGM
valve_loading_methodWEIGHT
NSN4820-00-134-8242
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 258557-1 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
BODY STYLE: TEE
•
REGULATION TYPE: AUTOMATIC SINGLE STAGE
•
FIRST END THREAD CLASS: 3B
•
THIRD END RELATIONSHIP WITH PRECEDING ENDS: IDENTICAL WITH FIRST END
•
FIRST END STYLE DESIGNATOR: GASKET SEAL
•
TEMP RATING: -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLETEE
REGULATION TYPEAUTOMATIC SINGLE STAGE
FIRST END THREAD CLASS3B
THIRD END RELATIONSHIP WITH PRECEDING ENDSIDENTICAL WITH FIRST END
FIRST END STYLE DESIGNATORGASKET SEAL
TEMP RATING-65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF
END CONNECTION QUANTITY3
VALVE LOADING METHODWEIGHT
SUBSTITUTES & CROSS-REFERENCES 1
2F14N8A8A8A2-5SM22Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 258557-1?
258557-1 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 258557-1?
There is 1 known substitute for 258557-1: 2F14N8A8A8A2-5SM22. Substitute compatibility should be verified for your specific system.
What is the NSN for 258557-1?
258557-1 is cataloged in the U.S. Government catalog under NSN 4820-00-134-8242. This indicates validated use in U.S. government and defense supply chains.
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