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Technical Data Sheet
PartsTable / COMPONENT / 49-1/4
49-1/4 ✓ 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 49-1/4 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 4820-00-805-4227, 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
49-1/4
NSN: 4820-00-805-4227
FSC: 4820
CAGE: 98149 — EASTMAN CENTRAL D MFG DIV UNITED STATES BRASS CORP (USA)
SPECIFICATIONS
Part Number49-1/4
NSN4820-00-805-4227
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 49-1/4 · 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
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
VALVE OPERATION METHOD: MANUAL
•
FLOW STYLE: TWO WAY TWO PORT 90 DEGREE PLUG TURN
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
FEATURES PROVIDED: NONADJUSTABLE ROTATION
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VALVE OPERATION METHODMANUAL
FLOW STYLETWO WAY TWO PORT 90 DEGREE PLUG TURN
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
FEATURES PROVIDEDNONADJUSTABLE ROTATION
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALCOPPER ALLOY OVERALL
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
3F2371Interchangeable
interchangeable cross-reference
interchangeable
1996041Interchangeable
interchangeable cross-reference
interchangeable
00170-0208Interchangeable
interchangeable cross-reference
interchangeable
10164395Interchangeable
interchangeable cross-reference
interchangeable
4914Interchangeable
interchangeable cross-reference
interchangeable
372A14-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49-1/4?
49-1/4 is a 49-1/4.
What parts can replace 49-1/4?
There are 19 known substitutes for 49-1/4: 3F2371, 1996041, 00170-0208 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 49-1/4?
49-1/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-805-4227. 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