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Technical Data Sheet
PartsTable / COMPONENT / FIG NO B-142-E SZ 2 1/2 IN
FIG NO B-142-E SZ 2 1/2 IN ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The FIG NO B-142-E SZ 2 1/2 IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-305-9782, 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
FIG NO B-142-E SZ 2 1/2 IN
NSN: 4820-01-305-9782
FSC: 4820
CAGE: 30263 — PIMA VALVE, LLC (USA)
SPECIFICATIONS
Part NumberFIG NO B-142-E SZ 2 1/2 IN
NSN4820-01-305-9782
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: FIG NO B-142-E SZ 2 1/2 IN · 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
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SECOND RESPONSE DEGF
•
MATERIAL: NICKEL ALLOY 400 OR NICKEL ALLOY SEAT
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: STM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
BOLT HOLE QUANTITY: 4 ALL ENDS
•
NOMINAL THICKNESS: 0.563 INCHES ALL ENDS IN
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY SEAT
FLANGE SHAPEROUND WITH HOLES ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONSTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
BOLT HOLE QUANTITY4 ALL ENDS
NOMINAL THICKNESS0.563 INCHES ALL ENDS IN
VALVE OPERATION METHODMANUAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS IN
VALVE SIZE2.500 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
004458-050Interchangeable
interchangeable cross-reference
interchangeable
003590Interchangeable
interchangeable cross-reference
interchangeable
3590Interchangeable
interchangeable cross-reference
interchangeable
5L590Interchangeable
interchangeable cross-reference
interchangeable
MS39243-35Interchangeable
interchangeable cross-reference
interchangeable
55R15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FIG NO B-142-E SZ 2 1/2 IN?
FIG NO B-142-E SZ 2 1/2 IN is a FIG NO B-142-E SZ 2 1/2 IN.
What parts can replace FIG NO B-142-E SZ 2 1/2 IN?
There are 15 known substitutes for FIG NO B-142-E SZ 2 1/2 IN: 004458-050, 003590, 3590 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FIG NO B-142-E SZ 2 1/2 IN?
FIG NO B-142-E SZ 2 1/2 IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-305-9782. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026