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PartsTable / COMPONENT / A-49148 PIECE 20
A-49148 PIECE 20 ✓ 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

SLIDE,DIRECTIONAL CONTROL LINEAR. Key specifications include material: STEEL, overall_length: 4.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-303-2542, 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
A-49148 PIECE 20
NSN: 4820-01-303-2542
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL
overall_length4.500 INCHES NOMINAL IN
special_features6.500 IN. DIA,0.875 IN. FLANGE THK,ONE END;6.250 IN. DIA,0.750 IN. FLANGE THK,5.062 IN. BOLT CIRCLE,4 HOLES 0.750 IN. DIA,OTHER END;600 PSI MAX IN
NSN4820-01-303-2542
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A-49148 PIECE 20 · 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
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.500 INCHES NOMINAL IN
MATERIALSTEEL
SPECIAL FEATURES6.500 IN. DIA,0.875 IN. FLANGE THK,ONE END;6.250 IN. DIA,0.750 IN. FLANGE THK,5.062 IN. BOLT CIRCLE,4 HOLES 0.750 IN. DIA,OTHER END;600 PSI MAX IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
A49151PC3Interchangeable
interchangeable cross-reference
interchangeable
082791Interchangeable
interchangeable cross-reference
interchangeable
82791Interchangeable
interchangeable cross-reference
interchangeable
A49148Interchangeable
interchangeable cross-reference
interchangeable
HNBJInterchangeable
interchangeable cross-reference
interchangeable
A-49120 PIECE 37Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-49148 PIECE 20?
A-49148 PIECE 20 is a SLIDE,DIRECTIONAL CONTROL LINEAR.
What parts can replace A-49148 PIECE 20?
There are 19 known substitutes for A-49148 PIECE 20: A49151PC3, 082791, 82791 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-49148 PIECE 20?
A-49148 PIECE 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-303-2542. 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