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PartsTable / COMPONENT / 26M77-100 PC72
26M77-100 PC72 ✓ 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 RING,DISK,STEM,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: BRASS ASTM B-21. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-117-0973, 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
26M77-100 PC72
NSN: 4820-01-117-0973
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRASS ASTM B-21
NSN4820-01-117-0973
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 26M77-100 PC72 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS ASTM B-21
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS ASTM B-21
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
845-2181282 PIECE 28 3 IN.Interchangeable
interchangeable cross-reference
interchangeable
1/2 CHRG50Interchangeable
interchangeable cross-reference
interchangeable
1/2 INCH 52100 GRADE 50Interchangeable
interchangeable cross-reference
interchangeable
C600-045-1250Interchangeable
interchangeable cross-reference
interchangeable
845-2181282Interchangeable
interchangeable cross-reference
interchangeable
26M77-100 PC MK73Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 26M77-100 PC72?
26M77-100 PC72 is a RING,DISK,STEM,VALVE.
What parts can replace 26M77-100 PC72?
There are 27 known substitutes for 26M77-100 PC72: 845-2181282 PIECE 28 3 IN., 1/2 CHRG50, 1/2 INCH 52100 GRADE 50 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 26M77-100 PC72?
26M77-100 PC72 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-117-0973. 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