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581-6405750 AHWA-2 — UNIVERSAL JOINT,NONVEHICULAR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

581-6405750 AHWA-2: UNIVERSAL JOINT,NONVEHICULAR.

The UNIVERSAL JOINT,NONVEHICULAR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, flange_shape: ROUND, flange_diameter: 4.880 INCHES IN, end_item_identification: SEAWOLF CLASS SSN, bolt_hole_nominal_diameter: 0.406 INCHES IN, nominal_center_hole_diameter: 2.006 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-443-7517, 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
581-6405750 AHWA-2
NSN: 4820-01-443-7517
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY
flange_shapeROUND
flange_diameter4.880 INCHES IN
bolt_hole_quantity6
end_item_identificationSEAWOLF CLASS SSN
bolt_hole_nominal_diameter0.406 INCHES IN
nominal_center_hole_diameter2.006 INCHES IN
material_document_and_classificationASTM B150, ALLOY C63200 ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-443-7517
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 581-6405750 AHWA-2 · 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
•
FLANGE SHAPE: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B150, ALLOY C63200 ASSN STD SINGLE MATERIAL RESPONSE
•
BOLT HOLE NOMINAL DIAMETER: 0.406 INCHES IN
•
BOLT HOLE QUANTITY: 6
•
FLANGE DIAMETER: 4.880 INCHES IN
•
NOMINAL CENTER HOLE DIAMETER: 2.006 INCHES IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B150, ALLOY C63200 ASSN STD SINGLE MATERIAL RESPONSE
BOLT HOLE NOMINAL DIAMETER0.406 INCHES IN
BOLT HOLE QUANTITY6
FLANGE DIAMETER4.880 INCHES IN
NOMINAL CENTER HOLE DIAMETER2.006 INCHES IN
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
581-6405750 AHWA FIND 2Reference document
Same NSN cross-reference
Reference document — Secondary reference
6405750 AHWA FIReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6405750Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 581-6405750 AHWA-2?
581-6405750 AHWA-2 is a UNIVERSAL JOINT,NONVEHICULAR.
What parts can replace 581-6405750 AHWA-2?
There are 3 known substitutes for 581-6405750 AHWA-2: 581-6405750 AHWA FIND 2, 6405750 AHWA FI, 6405750. Substitute compatibility should be verified for your specific system.
What is the NSN for 581-6405750 AHWA-2?
581-6405750 AHWA-2 is cataloged in the U.S. Government catalog under NSN 4820-01-443-7517. 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.