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855543-2 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

855543-2: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.500 INCHES NOMINAL IN, style_designator: INTERNALLY THREADED FULL LENGTH, width_across_flats: 0.312 INCHES NOMINAL IN, cross-sectional_shape: RECTANGULAR, left_counterbore_depth: 0.125 INCHES NOMINAL IN, right_counterbore_depth: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-279-7040, 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
855543-2
NSN: 5340-01-279-7040
FSC: 5340 — Hardware, Commercial
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
length1.500 INCHES NOMINAL IN
style_designatorINTERNALLY THREADED FULL LENGTH
width_across_flats0.312 INCHES NOMINAL IN
cross-sectional_shapeRECTANGULAR
left_counterbore_depth0.125 INCHES NOMINAL IN
right_counterbore_depth0.125 INCHES NOMINAL IN
left_counterbore_diameter0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
NSN5340-01-279-7040
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 855543-2 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: 0.125 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
LENGTH: 1.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
RIGHT COUNTERBORE DEPTH: 0.125 INCHES NOMINAL IN
•
LEFT COUNTERBORE DIAMETER: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE: RECTANGULAR
TECHNICAL CHARACTERISTICS
LEFT COUNTERBORE DEPTH0.125 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
LENGTH1.500 INCHES NOMINAL IN
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
RIGHT COUNTERBORE DEPTH0.125 INCHES NOMINAL IN
LEFT COUNTERBORE DIAMETER0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPERECTANGULAR
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 855543-2?
855543-2 is a STANDOFF,THREADED,SPACING.
What is the NSN for 855543-2?
855543-2 is cataloged in the U.S. Government catalog under NSN 5340-01-279-7040. This indicates validated use in U.S. government and defense supply chains.
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