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Technical Data Sheet
PartsTable / COMPONENT / A21438
A21438 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

PARTS KIT,FUEL FLOW PROPORTLONER. Key specifications include general_characteristics_item_description: CLEANED AND PACKAGED PERMIL-P-52211 /CE/, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY CLEANINGREQUIREMENT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-067-0454, 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
A21438
NSN: 4720-00-067-0454
FSC: 4720
CAGE: 13841 — TIFFIN PARTS, L.L.C. DIV SUBSIDIARY OF PETTIBONE CORP. (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCLEANED AND PACKAGED PERMIL-P-52211 /CE/
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY CLEANINGREQUIREMENT
NSN4720-00-067-0454
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: A21438 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MINIMUM INSIDE BENDING RADIUS: 4.625 INCHES IN
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED FABRIC AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER RUBBER IMPREGNATED BRAIDED FABRIC
•
TEMP RATING: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
BURST TEST PRESSURE: 8000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
•
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SPECIFICATION/STANDARD DATA: 81343-SAE J517,100R5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM INSIDE BENDING RADIUS4.625 INCHES IN
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED FABRIC AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER RUBBER IMPREGNATED BRAIDED FABRIC
TEMP RATING-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
BURST TEST PRESSURE8000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
END ITEM IDENTIFICATIONGRUMMAN A10 AIRCRAFT
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SPECIFICATION/STANDARD DATA81343-SAE J517,100R5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA8 SIZE
INSIDE SURFACE CONDITIONSMOOTH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
2118Interchangeable
interchangeable cross-reference
interchangeable
61-181Interchangeable
interchangeable cross-reference
interchangeable
3R8129Interchangeable
interchangeable cross-reference
interchangeable
4K1077Interchangeable
interchangeable cross-reference
interchangeable
905-0436.4Interchangeable
interchangeable cross-reference
interchangeable
G453571Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A21438?
A21438 is a PARTS KIT,FUEL FLOW PROPORTLONER.
What parts can replace A21438?
There are 29 known substitutes for A21438: 2118, 61-181, 3R8129 and 26 more. Substitute compatibility should be verified for your specific system.
Is A21438 still available?
A21438 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