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Technical Data Sheet
PartsTable / MRO / D-531
D-531 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The FILTER,BAND PASS is a the manufacturer industrial component. Key specifications include material: PAPER OVERALL, hole_diameter: 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, pitch_diameter: 1.0000 INCHES NOMINAL IN, pressure_angle: 14.5000 DEGREES, teeth_quantity: 32, outside_diameter: 5.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-298-0511, 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→ D-531
NSN: 5330-00-298-0511
FSC: 5330
CAGE: 51665 — RIVINIUS INC LITTLEFORD MACHINERY DIV (USA)
SPECIFICATIONS
materialPAPER OVERALL
hole_diameter0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
pitch_diameter1.0000 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity32
outside_diameter5.250 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter3.312 INCHES NOMINAL IN
bolt_hole_quantity6
face_nominal_width0.188 INCHES IN
bolt_circle_diameter4.250 INCHES NOMINAL IN
end_item_identificationB-1
NSN5330-00-298-0511
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D-531 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HOLE DIAMETER: 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.010 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 5.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 4.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: PAPER OVERALL
•
APERTURE DIAMETER: 3.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.010 INCHES NOMINAL IN
OUTSIDE DIAMETER5.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER4.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALPAPER OVERALL
APERTURE DIAMETER3.312 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
WB22MLDInterchangeable
interchangeable cross-reference
interchangeable
08L590Interchangeable
interchangeable cross-reference
interchangeable
R653071PC18SH3Interchangeable
interchangeable cross-reference
interchangeable
V24-5052Interchangeable
interchangeable cross-reference
interchangeable
231234Interchangeable
interchangeable cross-reference
interchangeable
26699Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D-531?
D-531 is a FILTER,BAND PASS. It is classified as a MRO (MRO_GENERAL).
What parts can replace D-531?
There are 18 known substitutes for D-531: WB22MLD, 08L590, R653071PC18SH3 and 15 more. Substitute compatibility should be verified for your specific system.
Is D-531 still available?
D-531 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026