PartsTable
Technical Data Sheet
Download PDF

0380-0643 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

0380-0643: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.255 INCHES NOMINAL IN, groove_width: 0.030 INCHES NOMINAL IN, groove_diameter: 0.0974 INCHES NOMINAL IN, shoulder_length: 0.085 INCHES NOMINAL IN, special_features: THREADED END COUNTERBORED 0.156 IN. DIA BY 0.080 DP IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-079-5427, 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
0380-0643
NSN: 5340-01-079-5427
FSC: 5340 — Hardware, Commercial
CAGE: 7ZXR5 — KEYSIGHT TECHNOLOGIES INC (USA)
SPECIFICATIONS
length0.255 INCHES NOMINAL IN
groove_width0.030 INCHES NOMINAL IN
groove_diameter0.0974 INCHES NOMINAL IN
shoulder_length0.085 INCHES NOMINAL IN
special_featuresTHREADED END COUNTERBORED 0.156 IN. DIA BY 0.080 DP IN
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
shoulder_diameter0.164 INCHES NOMINAL IN
width_across_flats0.281 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
left_counterbore_depth0.080 INCHES NOMINAL IN
left_counterbore_diameter0.156 INCHES NOMINAL IN
NSN5340-01-079-5427
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0380-0643 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
•
LEFT COUNTERBORE DEPTH: 0.080 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.281 INCHES NOMINAL IN
•
LENGTH: 0.255 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.0974 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
LEFT COUNTERBORE DIAMETER: 0.156 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
SHOULDER DIAMETER: 0.164 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LEFT COUNTERBORE DEPTH0.080 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.281 INCHES NOMINAL IN
LENGTH0.255 INCHES NOMINAL IN
GROOVE DIAMETER0.0974 INCHES NOMINAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
LEFT COUNTERBORE DIAMETER0.156 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEHEXAGON
SHOULDER DIAMETER0.164 INCHES NOMINAL IN
SPECIAL FEATURESTHREADED END COUNTERBORED 0.156 IN. DIA BY 0.080 DP IN
SHOULDER LENGTH0.085 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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
Ready to buy 0380-0643?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 0380-0643?
0380-0643 is a STANDOFF,THREADED,SPACING.
What is the NSN for 0380-0643?
0380-0643 is cataloged in the U.S. Government catalog under NSN 5340-01-079-5427. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 0380-0643

✓ 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.