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128738 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

128738: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.116 INCHES NOMINAL IN, diameter: 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, style_designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS, cross-sectional_shape: ROUND, distance_from_end_to_hole_center: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-099-9281, 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
128738
NSN: 5340-01-099-9281
FSC: 5340 — Hardware, Commercial
CAGE: 10138 — ASTRONAUTICS CORPORATION OF AMERICA (USA)
SPECIFICATIONS
length1.116 INCHES NOMINAL IN
diameter0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
style_designatorLEFT INTERNAL AND RIGHT INTERNAL THREADS
cross-sectional_shapeROUND
distance_from_end_to_hole_center0.500 INCHES NOMINAL IN
NSN5340-01-099-9281
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 128738 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
•
LENGTH: 1.116 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT INTERNAL THREADS
•
DIAMETER: 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE: ROUND
•
DISTANCE FROM END TO HOLE CENTER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH1.116 INCHES NOMINAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT INTERNAL THREADS
DIAMETER0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND
DISTANCE FROM END TO HOLE CENTER0.500 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 128738?
128738 is a STANDOFF,THREADED,SPACING.
What is the NSN for 128738?
128738 is cataloged in the U.S. Government catalog under NSN 5340-01-099-9281. This indicates validated use in U.S. government and defense supply chains.
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