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20526 — WEIGHT,COUNTERBALANCE

✓ Government record, cited
APC · MRO · MRO_GENERAL
PRODUCT OVERVIEW

20526: WEIGHT,COUNTERBALANCE.

Complete line of SCSI cables, adapters, and terminators to connect your peripherals and devices. Key specifications include material: STEEL, seat_angle: 45.0 DEGREES NOMINAL, thread_class: 2A A, overall_height: 0.650 INCHES NOMINAL IN, shoulder_width: 0.070 INCHES NOMINAL IN, shoulder_height: 0.350 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-067-8539, 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
MRO→ MRO_GENERAL→ 20526
NSN: 4820-00-067-8539
NIINs: 000678539, 004622289, 008866304, 012022639, 012908265, 013064641, 013930473, 016478312, 017073293, 017073317, 017073380, 017073431, 017073436, 017073645, 017073692, 017073751, 017075443, 017075446
FSC: 4820 — Valves, Nonpowered
CAGE: 26505 — GROVE VALVE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL
seat_angle45.0 DEGREES NOMINAL
thread_class2A A
overall_height0.650 INCHES NOMINAL IN
shoulder_width0.070 INCHES NOMINAL IN
shoulder_height0.350 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size0.313 INCHES IN
thread_series_designatorUNF
criticality_code_justificationZZZY
part_name_assigned_by_controlling_agencyIMPRESSION MATERIAL MIXING TIP GREEN PLASTIC MEDIUM TIPS 48/PG
reference_number_differentiating_characteristicsQUALITY CONTROLLED IAW NAVY LEVEL 1 ASSURANCE GUIDE, CLEANED IAW MIL-C-52211
NSN4820-00-067-8539
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20526 · APC ⚠ 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
•
SHOULDER WIDTH: 0.070 INCHES NOMINAL IN
•
SHOULDER HEIGHT: 0.350 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLUG
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
NOMINAL THREAD SIZE: 0.313 INCHES IN
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.650 INCHES NOMINAL IN
SHOULDER WIDTH0.070 INCHES NOMINAL IN
SHOULDER HEIGHT0.350 INCHES NOMINAL IN
STYLE DESIGNATORPLUG
SEAT ANGLE45.0 DEGREES NOMINAL
NOMINAL THREAD SIZE0.313 INCHES IN
THREAD CLASS2A A
MATERIALSTEEL
THREAD SERIES DESIGNATORUNF
SUBSTITUTES & CROSS-REFERENCES 1
X20526L1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20526?
20526 is a WEIGHT,COUNTERBALANCE manufactured by APC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20526?
There is 1 known substitute for 20526: X20526L1. Substitute compatibility should be verified for your specific system.
What is the NSN for 20526?
20526 is cataloged in the U.S. Government catalog under NSN 4820-00-067-8539. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.