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B49749MEF — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B49749MEF: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316, overall_length: 6.030 INCHES NOMINAL IN, stem_actuating_end_type: THREADED EXTERNALLY, largest_outside_diameter: 0.875 INCHES NOMINAL IN, valve_size_for_which_designed: 2.000 INCHES IN, valve_type_for_which_designed: REGULATOR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-173-4255, 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
B49749MEF
NSN: 4820-01-173-4255
FSC: 4820 — Valves, Nonpowered
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 316
overall_length6.030 INCHES NOMINAL IN
stem_actuating_end_typeTHREADED EXTERNALLY
largest_outside_diameter0.875 INCHES NOMINAL IN
valve_size_for_which_designed2.000 INCHES IN
valve_type_for_which_designedREGULATOR
NSN4820-01-173-4255
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B49749MEF · 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
•
VALVE TYPE FOR WHICH DESIGNED: REGULATOR
•
LARGEST OUTSIDE DIAMETER: 0.875 INCHES NOMINAL IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
VALVE SIZE FOR WHICH DESIGNED: 2.000 INCHES IN
•
MATERIAL: STEEL COMP 316
TECHNICAL CHARACTERISTICS
VALVE TYPE FOR WHICH DESIGNEDREGULATOR
LARGEST OUTSIDE DIAMETER0.875 INCHES NOMINAL IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
OVERALL LENGTH6.030 INCHES NOMINAL IN
VALVE SIZE FOR WHICH DESIGNED2.000 INCHES IN
MATERIALSTEEL COMP 316
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
D49911 FIND 5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
D49911Reference 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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B49749MEF?
B49749MEF is a STEM,FLUID VALVE.
What parts can replace B49749MEF?
There are 2 known substitutes for B49749MEF: D49911 FIND 5, D49911. Substitute compatibility should be verified for your specific system.
What is the NSN for B49749MEF?
B49749MEF is cataloged in the U.S. Government catalog under NSN 4820-01-173-4255. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.