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BS5-1639 PIECE 9 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BS5-1639 PIECE 9: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include attachment_method: SLOT, rim_surface_width: 0.750 INCHES NOMINAL IN, center_hole_diameter: 1.937 INCHES NOMINAL IN, cross-sectional_height: 1.750 INCHES NOMINAL IN, attachment_feature_width: 0.750 INCHES NOMINAL IN, attachment_feature_length: 0.874 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-148-7504, 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
BS5-1639 PIECE 9
NSN: 5330-01-148-7504
FSC: 5330 — Packing and Gasket Materials
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
attachment_methodSLOT
rim_surface_width0.750 INCHES NOMINAL IN
center_hole_diameter1.937 INCHES NOMINAL IN
cross-sectional_height1.750 INCHES NOMINAL IN
attachment_feature_width0.750 INCHES NOMINAL IN
attachment_feature_length0.874 INCHES NOMINAL IN
attachment_feature_quantity2
NSN5330-01-148-7504
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BS5-1639 PIECE 9 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
•
ATTACHMENT FEATURE QUANTITY: 2
•
CROSS-SECTIONAL HEIGHT: 1.750 INCHES NOMINAL IN
•
ATTACHMENT FEATURE LENGTH: 0.874 INCHES NOMINAL IN
•
ATTACHMENT FEATURE WIDTH: 0.750 INCHES NOMINAL IN
•
RIM SURFACE WIDTH: 0.750 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.937 INCHES NOMINAL IN
•
ATTACHMENT METHOD: SLOT
TECHNICAL CHARACTERISTICS
ATTACHMENT FEATURE QUANTITY2
CROSS-SECTIONAL HEIGHT1.750 INCHES NOMINAL IN
ATTACHMENT FEATURE LENGTH0.874 INCHES NOMINAL IN
ATTACHMENT FEATURE WIDTH0.750 INCHES NOMINAL IN
RIM SURFACE WIDTH0.750 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.937 INCHES NOMINAL IN
ATTACHMENT METHODSLOT
SUBSTITUTES & CROSS-REFERENCES 2
LL107Reference document
Same NSN cross-reference
Reference document — Secondary reference
CV41-S4602-9 PIECE 9Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BS5-1639 PIECE 9?
BS5-1639 PIECE 9 is a RETAINER,PACKING.
What parts can replace BS5-1639 PIECE 9?
There are 2 known substitutes for BS5-1639 PIECE 9: LL107, CV41-S4602-9 PIECE 9. Substitute compatibility should be verified for your specific system.
What is the NSN for BS5-1639 PIECE 9?
BS5-1639 PIECE 9 is cataloged in the U.S. Government catalog under NSN 5330-01-148-7504. 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.