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PartsTable / COMPONENT / A50157
A50157 ✓ 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 RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING STEM, bonnet_type: INSIDE SCREW, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL(BOSS) ALL ENDS, style_designator: STRAIGHT THRU. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-529-4180, 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
A50157
NSN: 4820-00-529-4180
FSC: 4820
CAGE: 58730 — AIRBORNE TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING STEM
bonnet_typeINSIDE SCREW
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL(BOSS) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
features_providedPRESSURE TIGHT OUTLET SIDE
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size0.562 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
NSN4820-00-529-4180
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A50157 · 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: ALUMINUM ALLOY BODY
•
CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS
•
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
CONNECTION STYLE: GASKET SEAL(BOSS) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY BODY
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
MATERIALSTEEL CORROSION RESISTING STEM
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
CONNECTION STYLEGASKET SEAL(BOSS) ALL ENDS
THREAD CLASS3B ALL ENDS
BONNET ATTACHMENT METHODINTEGRAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
SK-45503Interchangeable
interchangeable cross-reference
interchangeable
10291-1Interchangeable
interchangeable cross-reference
interchangeable
559-1561-048Interchangeable
interchangeable cross-reference
interchangeable
400-512-062Interchangeable
interchangeable cross-reference
interchangeable
4704-203851Interchangeable
interchangeable cross-reference
interchangeable
BS-2022-3 ITEM 6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A50157?
A50157 is a RESISTOR,FIXED,COMPOSITION.
What parts can replace A50157?
There are 7 known substitutes for A50157: SK-45503, 10291-1, 559-1561-048 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A50157?
A50157 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-529-4180. 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