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Technical Data Sheet
PartsTable / COMPONENT / B-344A
B-344A ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

INSIGNIA,GRADE,ENLISTED PERSONNE. Key specifications include color: BLUE BORDER, material: WOOL COMP 9R4 OVERALL, fiber_material: RAYON SYMBOL, user_designator: ENLISTED WOMAN, outside_diameter: 1.250 INCHES NOMINAL IN, size_designation: SMALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-599-1301, 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
B-344A
NSN: 5330-00-599-1301
FSC: 5330
CAGE: H1F54 — DOEDIJNS B.V. (NLD)
SPECIFICATIONS
colorBLUE BORDER
materialWOOL COMP 9R4 OVERALL
fiber_materialRAYON SYMBOL
user_designatorENLISTED WOMAN
outside_diameter1.250 INCHES NOMINAL IN
size_designationSMALL
special_featuresSIZE DESIGNATION-SMALL;COLOR-AF GREY BACKGROUND, DARK EMBROIDERY
style_designatorCIRCULAR
aperture_diameter0.625 INCHES NOMINAL IN
attachment_methodSEW-ON
cloth-fabric_nameYARN SYMBOL
features_providedFULL COLOR AREAS
NSN5330-00-599-1301
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B-344A 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
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: WOOL COMP 9R4 OVERALL
•
CROSS-SECTIONAL WIDTH: 0.984 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.3125 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: C-F-206 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCIRCULAR
MATERIALWOOL COMP 9R4 OVERALL
CROSS-SECTIONAL WIDTH0.984 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.3125 INCHES NOMINAL IN
APERTURE DIAMETER0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONC-F-206 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
503371Interchangeable
interchangeable cross-reference
interchangeable
C-F-206 TYPE 1Interchangeable
interchangeable cross-reference
interchangeable
6050-2-1Interchangeable
interchangeable cross-reference
interchangeable
MS28932C-10-00Interchangeable
interchangeable cross-reference
interchangeable
MS28932CL10Interchangeable
interchangeable cross-reference
interchangeable
HOLD ADHESIVEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-344A?
B-344A is a INSIGNIA,GRADE,ENLISTED PERSONNE.
What parts can replace B-344A?
There are 19 known substitutes for B-344A: 503371, C-F-206 TYPE 1, 6050-2-1 and 16 more. Substitute compatibility should be verified for your specific system.
Is B-344A still available?
B-344A 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