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Technical Data Sheet
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VKA2521 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 12L14 OVERALL, body_type: SOLID, head_type: SOLID, exterior_color: GRAY/GREY HEAD, drive_end_style: RAISED SQUARE, connection_style: PLAIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-097-0414, 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
VKA2521
NSN: 4730-01-097-0414
FSC: 4730
CAGE: 23705 — FRUEHAUF CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 12L14 OVERALL
body_typeSOLID
head_typeSOLID
exterior_colorGRAY/GREY HEAD
drive_end_styleRAISED SQUARE
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size0.250 INCHES EXTERNAL IN
thread_series_designatorNPT EXTERNAL
nominal_pipe_size_for_which_designed0.250 INCHES IN
NSN4730-01-097-0414
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: VKA2521 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.250 INCHES EXTERNAL IN
•
THREAD SERIES DESIGNATOR: NPT EXTERNAL
•
EXTERIOR COLOR: GRAY/GREY HEAD
•
CONNECTION STYLE: PLAIN
•
HEAD TYPE: SOLID
•
BODY TYPE: SOLID
•
MATERIAL: STEEL COMP 12L14 OVERALL
•
DRIVE END STYLE: RAISED SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.250 INCHES EXTERNAL IN
THREAD SERIES DESIGNATORNPT EXTERNAL
EXTERIOR COLORGRAY/GREY HEAD
CONNECTION STYLEPLAIN
HEAD TYPESOLID
BODY TYPESOLID
MATERIALSTEEL COMP 12L14 OVERALL
DRIVE END STYLERAISED SQUARE
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
C5515X20Interchangeable
interchangeable cross-reference
interchangeable
2503-20-20Interchangeable
interchangeable cross-reference
interchangeable
107A-0091Interchangeable
interchangeable cross-reference
interchangeable
EWB7633-09Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is VKA2521?
VKA2521 is a PLUG,PIPE.
What parts can replace VKA2521?
There are 4 known substitutes for VKA2521: C5515X20, 2503-20-20, 107A-0091 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for VKA2521?
VKA2521 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-097-0414. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026