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A20523 — DISK,RUPTURABLE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A20523: DISK,RUPTURABLE.

The DISK,RUPTURABLE is a the manufacturer industrial component. Key specifications include diameter: 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN, material: STEEL COMP 302 OR STEEL COMP 304 OVERALL, point_type: EXTENDED PRONG SQUARE CUT, hardness_rating: 65.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 78.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL, special_features: NSN IS PART OF AIRCRAFT LAUNCH AND RECOVERY EQUIPMENT (ALRE), style_designator: STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-404-1554, 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
A20523
NSN: 4820-00-404-1554
NIINs: 004041554, 008151405
FSC: 4820 — Valves, Nonpowered
CAGE: 14487 — PROVISION, INC. DBA PROVISION INC (USA)
SPECIFICATIONS
diameter0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
materialSTEEL COMP 302 OR STEEL COMP 304 OVERALL
point_typeEXTENDED PRONG SQUARE CUT
hardness_rating65.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 78.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
special_featuresNSN IS PART OF AIRCRAFT LAUNCH AND RECOVERY EQUIPMENT (ALRE)
style_designatorSTANDARD
underloop_length0.438 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
end_item_identificationMRAP RG-33; A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE; MULTIPLE LAUNCH ROCKET SYSTEM; ARMORED MULTI-PURPOSE VEHICLE (AMPV)
criticality_code_justificationFEAT
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
part_name_assigned_by_controlling_agencyPIN, COTTER (SPLIT)
NSN4820-00-404-1554
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A20523 · 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
•
DISK MATERIAL: ALUMINUM
•
BURST PRESSURE: 75.0 PRESSURE POUNDS PER SQUARE INCH ABSOLUTE
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
DISK SIZE: 2.000 INCHES IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
TECHNICAL CHARACTERISTICS
DISK MATERIALALUMINUM
BURST PRESSURE75.0 PRESSURE POUNDS PER SQUARE INCH ABSOLUTE
CRITICALITY CODE JUSTIFICATIONZZZY
DISK SIZE2.000 INCHES IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
SUBSTITUTES & CROSS-REFERENCES 7
8622286-01Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
17701Reference document
Same NSN cross-reference
Reference document — Secondary reference
8622286-01CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A20523CPReference document
Same NSN cross-reference
Reference document — Secondary reference
2INUT75PSIAT72FALReference document
Same NSN cross-reference
Reference document — Secondary reference
17701CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A20523?
A20523 is a DISK,RUPTURABLE.
What parts can replace A20523?
There are 7 known substitutes for A20523: 8622286-01, 17701, 8622286-01CP and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A20523?
A20523 is cataloged in the U.S. Government catalog under NSN 4820-00-404-1554. This indicates validated use in U.S. government and defense supply chains.
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