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9730SS0440-0256 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9730SS0440-0256: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, groove_width: 0.038 INCHES MAXIMUM IN, groove_diameter: 0.0805 INCHES MAXIMUM IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, width_across_flats: 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN, cross-sectional_shape: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-156-1174, 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
9730SS0440-0256
NSN: 5340-00-156-1174
NIINs: 001561174, 012837251
FSC: 5340 — Hardware, Commercial
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)
SPECIFICATIONS
length0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
groove_width0.038 INCHES MAXIMUM IN
groove_diameter0.0805 INCHES MAXIMUM IN
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
width_across_flats0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
cross-sectional_shapeHEXAGON
specification/standard_data80250-NAS1829 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5340-00-156-1174
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9730SS0440-0256 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: 0.187 INCHES NOMINAL IN
•
LENGTH: 0.625 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.081 INCHES NOMINAL IN
•
THREAD LENGTH: 0.145 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.187 INCHES NOMINAL IN
LENGTH0.625 INCHES NOMINAL IN
GROOVE DIAMETER0.081 INCHES NOMINAL IN
THREAD LENGTH0.145 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPEHEXAGON
MATERIALSTEEL OVERALL
GROOVE WIDTH0.038 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9730SS0440-0256?
9730SS0440-0256 is a STANDOFF,THREADED,SPACING.
What is the NSN for 9730SS0440-0256?
9730SS0440-0256 is cataloged in the U.S. Government catalog under NSN 5340-00-156-1174. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.