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1260923-1 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1260923-1: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include length: 0.500 INCHES NOMINAL IN, diameter: 0.156 INCHES NOMINAL IN, groove_width: 0.031 INCHES NOMINAL IN, groove_diameter: 0.072 INCHES NOMINAL IN, shoulder_length: 0.125 INCHES NOMINAL IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-600-9784, 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
1260923-1
NSN: 5340-00-600-9784
NIINs: 006009784, 016772469
FSC: 5340 — Hardware, Commercial
CAGE: 55972 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS (USA)
SPECIFICATIONS
length0.500 INCHES NOMINAL IN
diameter0.156 INCHES NOMINAL IN
groove_width0.031 INCHES NOMINAL IN
groove_diameter0.072 INCHES NOMINAL IN
shoulder_length0.125 INCHES NOMINAL IN
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
shoulder_diameter0.109 INCHES NOMINAL IN
cross-sectional_shapeROUND
left_counterbore_depth0.078 INCHES NOMINAL IN
left_counterbore_diameter0.1093 INCHES MINIMUM AND 0.1098 INCHES MAXIMUM IN
distance_from_end_to_hole_center0.438 INCHES NOMINAL IN
hole_quantity_perpendicular_to_axis1
NSN5340-00-600-9784
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1260923-1 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: 0.078 INCHES NOMINAL IN
•
LENGTH: 0.500 INCHES NOMINAL IN
•
GROOVE DIAMETER: 0.072 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
DIAMETER: 0.156 INCHES NOMINAL IN
•
LEFT COUNTERBORE DIAMETER: 0.1093 INCHES MINIMUM AND 0.1098 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE: ROUND
•
SHOULDER DIAMETER: 0.109 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LEFT COUNTERBORE DEPTH0.078 INCHES NOMINAL IN
LENGTH0.500 INCHES NOMINAL IN
GROOVE DIAMETER0.072 INCHES NOMINAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
DIAMETER0.156 INCHES NOMINAL IN
LEFT COUNTERBORE DIAMETER0.1093 INCHES MINIMUM AND 0.1098 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND
SHOULDER DIAMETER0.109 INCHES NOMINAL IN
DISTANCE FROM END TO HOLE CENTER0.438 INCHES NOMINAL IN
SHOULDER LENGTH0.125 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 1260923-1?
1260923-1 is a PLATE,MOUNTING.
What is the NSN for 1260923-1?
1260923-1 is cataloged in the U.S. Government catalog under NSN 5340-00-600-9784. 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.