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Technical Data Sheet
PartsTable / COMPONENT / A48377
A48377 ✓ 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 ADJUSTING BOLT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, first_end_style: SQUARE, special_features: 2 1/2 INCH H4 HNB-H SAFETY VALVE IN, attachment_method: THREADED HOLES, pin_overall_length: 3.000 INCHES NOMINAL IN, pin_overall_diameter: 0.2450 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 4820-00-159-0558, 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
A48377
NSN: 4820-00-159-0558
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
first_end_styleSQUARE
special_features2 1/2 INCH H4 HNB-H SAFETY VALVE IN
attachment_methodTHREADED HOLES
pin_overall_length3.000 INCHES NOMINAL IN
pin_overall_diameter0.2450 INCHES NOMINAL IN
end_item_identificationCROSBY VALVE AND GAGE,COMPANY SAFETY BOR VALVE
valve_size_for_which_designed2.500 INCHES IN
valve_type_for_which_designedRELIEF
valve_model_number_for_which_designedH4 HN-H
second_end_relationship_with_first_endIDENTICAL
general_characteristics_item_descriptionSTEEL; 2.375 IN.DIA; 1.188 IN.LG; THD INTERNALLY 0.500-20 UNF; 2 SLOTS 0.188 IN.DIA; 0.562 IN.ID; 1.000 IN.WRENCHING FLATS IN
NSN4820-00-159-0558
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A48377 · 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
•
FLOW CONTROL DEVICE: DISK
•
VALVE DISCHARGE FLOW RATE: 37550.0 POUNDS PER HOUR LBS
•
FEATURES PROVIDED: PRESSURE TIGHT OUTLET SIDE
•
RAISED FACE NOMINAL DIAMETER: 6.188 INCHES SECOND END IN
•
BONNET ATTACHMENT METHOD: BOLTED
•
BOLT CIRCLE NOMINAL DIAMETER: 7.500 INCHES FIRST END IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
•
MATERIAL: STEEL COMP 304 FLOW CONTROL DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
VALVE DISCHARGE FLOW RATE37550.0 POUNDS PER HOUR LBS
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
RAISED FACE NOMINAL DIAMETER6.188 INCHES SECOND END IN
BONNET ATTACHMENT METHODBOLTED
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES FIRST END IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE VALVE DISCHARGE FLOW RATE REQUIREMENT
MATERIALSTEEL COMP 304 FLOW CONTROL DEVICE
BOLT HOLE NOMINAL DIAMETER1.125 INCHES FIRST END IN
NOMINAL THICKNESS1.688 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
A47800Interchangeable
interchangeable cross-reference
interchangeable
A47800PC36Interchangeable
interchangeable cross-reference
interchangeable
A48377PC40Interchangeable
interchangeable cross-reference
interchangeable
A48377PC16Interchangeable
interchangeable cross-reference
interchangeable
A48377Interchangeable
interchangeable cross-reference
interchangeable
35460Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A48377?
A48377 is a ADJUSTING BOLT,VALVE.
What parts can replace A48377?
There are 20 known substitutes for A48377: A47800, A47800PC36, A48377PC40 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A48377?
A48377 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-159-0558. 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