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1021261 — RETAINER,PACKING

✓ Government record, cited
3M · ORING SEAL
PRODUCT OVERVIEW

1021261: RETAINER,PACKING.

The RETAINER,PACKING is a 3M industrial component. Key specifications include document_title: MOVING EYE POINT GOLEM HEIGHTS, special_features: CGI MAP SHEET. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-926-4022, 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
1021261
NSN: 5330-00-926-4022
NIINs: 009264022, 015822296
FSC: 5330 — Packing and Gasket Materials
CAGE: 81412 — TREADWELL CORPORATION (DELAWARE) DBA TREADWELL CORP (USA)
SPECIFICATIONS
document_titleMOVING EYE POINT GOLEM HEIGHTS
special_featuresCGI MAP SHEET
NSN5330-00-926-4022
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1021261 MFR: 3M ⚠ 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 THICKNESS: 0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
ANGLE: 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
•
PERIPHERAL DIAMETER: 0.298 INCHES NOMINAL IN
•
DISTANCE BETWEEN ENDS: 0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.025 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE
ANGLE25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM
PERIPHERAL DIAMETER0.298 INCHES NOMINAL IN
DISTANCE BETWEEN ENDS0.032 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.188 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
JOINT TYPESCARF-BUTT RETAINER
SUBSTITUTES & CROSS-REFERENCES 4
500622-4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
102126-1CPReference document
Same NSN cross-reference
Reference document — Secondary reference
MS28782-3CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
500622-4CPReference 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 1021261?
1021261 is a RETAINER,PACKING manufactured by 3M.
What parts can replace 1021261?
There are 4 known substitutes for 1021261: 500622-4, 102126-1CP, MS28782-3CP and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1021261?
1021261 is cataloged in the U.S. Government catalog under NSN 5330-00-926-4022. 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.