PartsTable
Technical Data Sheet
Download PDF

8404-SS-0440-7 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8404-SS-0440-7: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.3125 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING STANDOFF, thread_length: 0.2500 INCHES NOMINAL RIGHT INTERNAL IN, style_designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS, thread_direction: RIGHT-HAND RIGHT INTERNAL, surface_treatment: PASSIVATE STANDOFF. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-413-6151, 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
8404-SS-0440-7
NSN: 5340-01-413-6151
FSC: 5340 — Hardware, Commercial
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)
SPECIFICATIONS
length1.3125 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING STANDOFF
thread_length0.2500 INCHES NOMINAL RIGHT INTERNAL IN
style_designatorLEFT INTERNAL AND RIGHT INTERNAL THREADS
thread_directionRIGHT-HAND RIGHT INTERNAL
surface_treatmentPASSIVATE STANDOFF
width_across_flats0.3125 INCHES NOMINAL IN
nominal_thread_size0.1120 INCHES RIGHT INTERNAL IN
cross-sectional_shapeHEXAGON
thread_quantity_per_inch40 LEFT INTERNAL (INCLUDES THRU THREAD)
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL
material_document_and_classificationASTM-A-581-75 ASSN STD SINGLE MATERIAL RESPONSE STANDOFF
NSN5340-01-413-6151
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8404-SS-0440-7 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: 0.3125 INCHES NOMINAL IN
•
LENGTH: 1.3125 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072-E300 MIL SPEC SINGLE TREATMENT RESPONSE STANDOFF
•
THREAD LENGTH: 0.2500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT INTERNAL THREADS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-581-75 ASSN STD SINGLE MATERIAL RESPONSE STANDOFF
•
THREAD DIRECTION: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.3125 INCHES NOMINAL IN
LENGTH1.3125 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072-E300 MIL SPEC SINGLE TREATMENT RESPONSE STANDOFF
THREAD LENGTH0.2500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD LENGTH0.2500 INCHES NOMINAL RIGHT INTERNAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT INTERNAL THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-581-75 ASSN STD SINGLE MATERIAL RESPONSE STANDOFF
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
NOMINAL THREAD SIZE0.1120 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) 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
Ready to buy 8404-SS-0440-7?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 8404-SS-0440-7?
8404-SS-0440-7 is a STANDOFF,THREADED,SPACING.
What is the NSN for 8404-SS-0440-7?
8404-SS-0440-7 is cataloged in the U.S. Government catalog under NSN 5340-01-413-6151. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 8404-SS-0440-7

✓ 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.