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128901-002 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

128901-002: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.530 INCHES NOMINAL IN, style_designator: PROJECTION BOTH ENDS LEFT AND RIGHT INTERNAL THREADS, width_across_flats: 0.250 INCHES NOMINAL IN, cross-sectional_shape: HEXAGON, distance_between_hole_centers: 0.812 INCHES NOMINAL IN, distance_from_end_to_hole_center: 0.420 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-232-5961, 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
128901-002
NSN: 5340-01-232-5961
FSC: 5340 — Hardware, Commercial
CAGE: 10138 — ASTRONAUTICS CORPORATION OF AMERICA (USA)
SPECIFICATIONS
length1.530 INCHES NOMINAL IN
style_designatorPROJECTION BOTH ENDS LEFT AND RIGHT INTERNAL THREADS
width_across_flats0.250 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
distance_between_hole_centers0.812 INCHES NOMINAL IN
distance_from_end_to_hole_center0.420 INCHES NOMINAL IN
hole_quantity_perpendicular_to_axis2
NSN5340-01-232-5961
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 128901-002 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: 0.250 INCHES NOMINAL IN
•
LENGTH: 1.530 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLE CENTERS: 0.812 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PROJECTION BOTH ENDS LEFT AND RIGHT INTERNAL THREADS
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
DISTANCE FROM END TO HOLE CENTER: 0.420 INCHES NOMINAL IN
•
HOLE QUANTITY PERPENDICULAR TO AXIS: 2
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH1.530 INCHES NOMINAL IN
DISTANCE BETWEEN HOLE CENTERS0.812 INCHES NOMINAL IN
STYLE DESIGNATORPROJECTION BOTH ENDS LEFT AND RIGHT INTERNAL THREADS
CROSS-SECTIONAL SHAPEHEXAGON
DISTANCE FROM END TO HOLE CENTER0.420 INCHES NOMINAL IN
HOLE QUANTITY PERPENDICULAR TO AXIS2
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 128901-002?
128901-002 is a STANDOFF,THREADED,SPACING.
What is the NSN for 128901-002?
128901-002 is cataloged in the U.S. Government catalog under NSN 5340-01-232-5961. 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.