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A-8787-1 PIECE 3 — Technical Data Sheet

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— · 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 LOCKING DEVICE,CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-117-8274, 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-8787-1 PIECE 3
NSN: 4820-01-117-8274
FSC: 4820
CAGE: 81576 — DRESSER CANADA INCVALVE AND CONTROLS CANADIAN OPN (CAN)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
NSN4820-01-117-8274
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A-8787-1 PIECE 3 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
102374InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
129563InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
819E2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
88-24550InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
56375030InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
33.187InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-8787-1 PIECE 3?
A-8787-1 PIECE 3 is a LOCKING DEVICE,CIRCUIT BREAKER.
What parts can replace A-8787-1 PIECE 3?
There are 17 known substitutes for A-8787-1 PIECE 3: 102374, 129563, 819E2 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-8787-1 PIECE 3?
A-8787-1 PIECE 3 is cataloged in the Federal Logistics Information System under NSN 4820-01-117-8274. 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: September 2026