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NA0221-025UH008 — NA0221-025UH008

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NA0221-025UH008: NA0221-025UH008.

The NA0221-025UH008 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-457-6908, 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
NA0221-025UH008
NSN: 5340-01-457-6908
FSC: 5340 — Hardware, Commercial
CAGE: 09062 — CRANE ELECTRONICS, INC. (USA)
SPECIFICATIONS
Part NumberNA0221-025UH008
NSN5340-01-457-6908
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NA0221-025UH008 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
•
WIDTH ACROSS FLATS: 4.5 MILLIMETERS NOMINAL MM
•
THREAD TOLERANCE CLASS: 4H6H INTERNAL LEFT INTERNAL (INCLUDES THRU THREAD)
•
LENGTH: 7.17 MILLIMETERS MINIMUM AND 8.13 MILLIMETERS MAXIMUM MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE STANDOFF
•
THREAD PITCH IN MILLIMETERS: 0.45 LEFT INTERNAL (INCLUDES THRU THREAD)
•
THREAD LENGTH: 4.8 MILLIMETERS NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) MM
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS4.5 MILLIMETERS NOMINAL MM
THREAD TOLERANCE CLASS4H6H INTERNAL LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD TOLERANCE CLASS4H6H INTERNAL RIGHT INTERNAL
LENGTH7.17 MILLIMETERS MINIMUM AND 8.13 MILLIMETERS MAXIMUM MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE STANDOFF
THREAD PITCH IN MILLIMETERS0.45 LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD PITCH IN MILLIMETERS0.45 RIGHT INTERNAL
THREAD LENGTH4.8 MILLIMETERS NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) MM
THREAD LENGTH4.8 MILLIMETERS NOMINAL RIGHT INTERNAL MM
STYLE DESIGNATORLEFT INTERNAL AND RIGHT INTERNAL THREADS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NA0221-025UH008?
NA0221-025UH008 is a NA0221-025UH008.
What is the NSN for NA0221-025UH008?
NA0221-025UH008 is cataloged in the U.S. Government catalog under NSN 5340-01-457-6908. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.