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20827-129 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

20827-129: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 9.87 MILLIMETERS MINIMUM AND 10.13 MILLIMETERS MAXIMUM MM, hole_diameter: 2.5 MILLIMETERS NOMINAL MM, style_designator: INTERNALLY THREADED FULL LENGTH, width_across_flats: 5.0 MILLIMETERS NOMINAL MM, cross-sectional_shape: HEXAGON, end_item_identification: DISPLAY PMC. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-658-5797, 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
20827-129
NSN: 5340-01-658-5797
FSC: 5340 — Hardware, Commercial
CAGE: 62559 — SCHROFF INC DBA PENTAIR TECHNICAL PRODUCTS (USA)
SPECIFICATIONS
length9.87 MILLIMETERS MINIMUM AND 10.13 MILLIMETERS MAXIMUM MM
hole_diameter2.5 MILLIMETERS NOMINAL MM
style_designatorINTERNALLY THREADED FULL LENGTH
width_across_flats5.0 MILLIMETERS NOMINAL MM
cross-sectional_shapeHEXAGON
end_item_identificationDISPLAY PMC
NSN5340-01-658-5797
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20827-129 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: 5.0 MILLIMETERS NOMINAL MM
•
LENGTH: 9.87 MILLIMETERS MINIMUM AND 10.13 MILLIMETERS MAXIMUM MM
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
HOLE DIAMETER: 2.5 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS5.0 MILLIMETERS NOMINAL MM
LENGTH9.87 MILLIMETERS MINIMUM AND 10.13 MILLIMETERS MAXIMUM MM
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
CROSS-SECTIONAL SHAPEHEXAGON
END ITEM IDENTIFICATIONDISPLAY PMC
HOLE DIAMETER2.5 MILLIMETERS NOMINAL MM
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 20827-129?
20827-129 is a STANDOFF,THREADED,SPACING.
What is the NSN for 20827-129?
20827-129 is cataloged in the U.S. Government catalog under NSN 5340-01-658-5797. 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.