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N5749 PIECE 7 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

N5749 PIECE 7: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, peripheral_diameter: 1.000 INCHES NOMINAL IN, center_hole_diameter: 0.500 INCHES NOMINAL IN, cross-sectional_height: 0.188 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-109-6777, 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
N5749 PIECE 7
NSN: 5330-01-109-6777
FSC: 5330 — Packing and Gasket Materials
CAGE: 09032 — TATE ANDALE, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
peripheral_diameter1.000 INCHES NOMINAL IN
center_hole_diameter0.500 INCHES NOMINAL IN
cross-sectional_height0.188 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
NSN5330-01-109-6777
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N5749 PIECE 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
•
CROSS-SECTIONAL HEIGHT: 0.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 1.000 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.188 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER1.000 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.500 INCHES NOMINAL IN
MATERIALSTEEL COMP 303 OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
H10271R1 PIECE 4SReference 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 N5749 PIECE 7?
N5749 PIECE 7 is a RETAINER,PACKING.
What parts can replace N5749 PIECE 7?
There is 1 known substitute for N5749 PIECE 7: H10271R1 PIECE 4S. Substitute compatibility should be verified for your specific system.
What is the NSN for N5749 PIECE 7?
N5749 PIECE 7 is cataloged in the U.S. Government catalog under NSN 5330-01-109-6777. 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.