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399784-5 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

399784-5: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.812 INCHES NOMINAL IN, thread_class: 2A RIGHT EXTERNAL A, thread_length: 0.312 INCHES NOMINAL RIGHT EXTERNAL IN, shoulder_length: 0.500 INCHES NOMINAL IN, style_designator: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD, shoulder_width_across_flats: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-121-2827, 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
399784-5
NSN: 5340-01-121-2827
FSC: 5340 — Hardware, Commercial
CAGE: 00752 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORP DIV ANTENNA PRODUCTS (USA)
SPECIFICATIONS
length0.812 INCHES NOMINAL IN
thread_class2A RIGHT EXTERNAL A
thread_length0.312 INCHES NOMINAL RIGHT EXTERNAL IN
shoulder_length0.500 INCHES NOMINAL IN
style_designatorPROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
shoulder_width_across_flats0.250 INCHES NOMINAL IN
NSN5340-01-121-2827
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 399784-5 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: 0.812 INCHES NOMINAL IN
•
THREAD LENGTH: 0.312 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
SHOULDER WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
THREAD CLASS: 2A RIGHT EXTERNAL A
•
SHOULDER LENGTH: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH0.812 INCHES NOMINAL IN
THREAD LENGTH0.312 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATORPROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
SHOULDER WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
THREAD CLASS2A RIGHT EXTERNAL A
THREAD CLASS2B LEFT INTERNAL (INCLUDES THRU THREAD)
SHOULDER LENGTH0.500 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 399784-5?
399784-5 is a STANDOFF,THREADED,SPACING.
What is the NSN for 399784-5?
399784-5 is cataloged in the U.S. Government catalog under NSN 5340-01-121-2827. This indicates validated use in U.S. government and defense supply chains.
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