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4548-632-SS-20 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4548-632-SS-20: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.375 INCHES NOMINAL IN, material: STEEL COMP 303 OVERALL, thread_class: 2A RIGHT EXTERNAL A, thread_length: 0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-379-1126, 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
4548-632-SS-20
NSN: 5340-01-379-1126
FSC: 5340 — Hardware, Commercial
CAGE: 55566 — MATTHEW WARREN, INC DBA RAF ELECTRONIC HARDWARE DIV RAF ELECTRONIC HARDWARE, LLC (USA)
SPECIFICATIONS
length1.375 INCHES NOMINAL IN
materialSTEEL COMP 303 OVERALL
thread_class2A RIGHT EXTERNAL A
thread_length0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
surface_treatmentPASSIVATE OVERALL
width_across_flats0.250 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES RIGHT EXTERNAL IN
cross-sectional_shapeHEXAGON
right_projection_length0.250 INCHES NOMINAL IN
thread_quantity_per_inch32 RIGHT EXTERNAL
NSN5340-01-379-1126
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4548-632-SS-20 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: 1.375 INCHES NOMINAL IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
NOMINAL THREAD SIZE: 0.138 INCHES RIGHT EXTERNAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH1.375 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD LENGTH0.200 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.138 INCHES RIGHT EXTERNAL IN
NOMINAL THREAD SIZE0.138 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
CROSS-SECTIONAL SHAPEHEXAGON
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 1
255-0047Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 4548-632-SS-20?
4548-632-SS-20 is a STANDOFF,THREADED,SPACING.
What parts can replace 4548-632-SS-20?
There is 1 known substitute for 4548-632-SS-20: 255-0047. Substitute compatibility should be verified for your specific system.
What is the NSN for 4548-632-SS-20?
4548-632-SS-20 is cataloged in the U.S. Government catalog under NSN 5340-01-379-1126. This indicates validated use in U.S. government and defense supply chains.
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