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PartsTable / COMPONENT / 77-102-01
77-102-01 ✓ 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 VALVE,BALL is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE PACKING, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: FLARE(TUBE) ALL ENDS, style_designator: STRAIGHT THRU, valve_operation_method: MANUAL, media_for_which_designed: STEAM SECOND RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-503-6496, 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
77-102-01
NSN: 4820-01-503-6496
FSC: 4820
CAGE: 72219 — AALBERTS INTEGRATED PIPING SYSTEMS AMERICAS, INC. (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE PACKING
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_styleFLARE(TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
valve_operation_methodMANUAL
media_for_which_designedSTEAM SECOND RESPONSE
nondefinitive_spec/std_data2 TYPE AND BC COMPOSITION AND 3 STYLE
specification/standard_data81349-WW-V-35C, TYPE II, COMP. BZ STYLE 3 GOVERNMENT SPECIFICATION
furnished_items_and_quantity1 LEVER
nominal_pipe_size_accommodated0.375 INCHES ALL ENDS IN
NSN4820-01-503-6496
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 77-102-01 · 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
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: FLARE(TUBE) ALL ENDS
•
SPECIFICATION/STANDARD DATA: 81349-WW-V-35C, TYPE II, COMP. BZ STYLE 3 GOVERNMENT SPECIFICATION
•
MATERIAL: COPPER ALLOY 360 STEM
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS FIRST RESPONSE
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEFLARE(TUBE) ALL ENDS
SPECIFICATION/STANDARD DATA81349-WW-V-35C, TYPE II, COMP. BZ STYLE 3 GOVERNMENT SPECIFICATION
MATERIALCOPPER ALLOY 360 STEM
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS FIRST RESPONSE
VALVE OPERATION METHODMANUAL
MATERIALCOPPER ALLOY 360 FLOW CONTROL DEVICE
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE PACKING
MEDIA FOR WHICH DESIGNEDSTEAM SECOND RESPONSE
STYLE DESIGNATORSTRAIGHT THRU
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
B780TInterchangeable
interchangeable cross-reference
interchangeable
909532Interchangeable
interchangeable cross-reference
interchangeable
T-580-70-1.25Interchangeable
interchangeable cross-reference
interchangeable
FIG. 575 1.25IPSInterchangeable
interchangeable cross-reference
interchangeable
70-109Interchangeable
interchangeable cross-reference
interchangeable
WW-V-35CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77-102-01?
77-102-01 is a VALVE,BALL.
What parts can replace 77-102-01?
There are 10 known substitutes for 77-102-01: B780T, 909532, T-580-70-1.25 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77-102-01?
77-102-01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-503-6496. 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