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S181-270 — BUTTON,PLUG

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S181-270: BUTTON,PLUG.

The BUTTON,PLUG is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, head_height: 0.050 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, overall_height: 0.210 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, style_designator: STANDARD, surface_treatment: CHROMIUM, head_outside_diameter: 0.630 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-133-5740, 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
S181-270
NSN: 5340-01-133-5740
FSC: 5340 — Hardware, Commercial
CAGE: 54418 — MILTOPE CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY
head_height0.050 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
overall_height0.210 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
prong_quantity8
style_designatorSTANDARD
surface_treatmentCHROMIUM
head_outside_diameter0.630 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
prong_outside_diameter0.500 INCHES NOMINAL IN
hole_accommodation_diameter0.500 INCHES NOMINAL IN
NSN5340-01-133-5740
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S181-270 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
•
HEAD HEIGHT: 0.050 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
HOLE ACCOMMODATION DIAMETER: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STANDARD
•
PRONG OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: CHROMIUM
•
HEAD OUTSIDE DIAMETER: 0.630 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.210 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
HEAD HEIGHT0.050 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
HOLE ACCOMMODATION DIAMETER0.500 INCHES NOMINAL IN
STYLE DESIGNATORSTANDARD
PRONG OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
SURFACE TREATMENTCHROMIUM
HEAD OUTSIDE DIAMETER0.630 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY
PRONG QUANTITY8
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 2
NS-48152-K1GHReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
NS-48152-K1611Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 S181-270?
S181-270 is a BUTTON,PLUG.
What parts can replace S181-270?
There are 2 known substitutes for S181-270: NS-48152-K1GH, NS-48152-K1611. Substitute compatibility should be verified for your specific system.
What is the NSN for S181-270?
S181-270 is cataloged in the U.S. Government catalog under NSN 5340-01-133-5740. 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.