ST7M251-5 — O-RING

✓ Government record, cited

— · ORING SEAL

PRODUCT OVERVIEW

ST7M251-5: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, special_features: BOLT DIA 5/32, center_hole_diameter: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN, cross-sectional_height: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN, material_document_and_classification: MIL-R-25988,TYPE I,CLASS 1,GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-494-7451, 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

ST7M251-5

NSN: 5331-01-494-7451
FSC: 5331 — O-ring
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	RUBBER FLUOROSILICONE CLASS FQ
hardness_rating	70.0 SHORE DUROMETER A NOMINAL
special_features	BOLT DIA 5/32
center_hole_diameter	0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
cross-sectional_height	0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
material_document_and_classification	MIL-R-25988,TYPE I,CLASS 1,GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agency	PREFORMED-MINATURE O-RING (FOR SEALING BOLTS)
NSN	5331-01-494-7451

COMPONENT DIAGRAM

KEY FEATURES

•

CROSS-SECTIONAL HEIGHT: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN

•

HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25988,TYPE I,CLASS 1,GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE

•

CENTER HOLE DIAMETER: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN

•

MATERIAL: RUBBER FLUOROSILICONE CLASS FQ

TECHNICAL CHARACTERISTICS

CROSS-SECTIONAL HEIGHT	0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
HARDNESS RATING	70.0 SHORE DUROMETER A NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-25988,TYPE I,CLASS 1,GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURES	BOLT DIA 5/32
CENTER HOLE DIAMETER	0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCY	PREFORMED-MINATURE O-RING (FOR SEALING BOLTS)
MATERIAL	RUBBER FLUOROSILICONE CLASS FQ

SUBSTITUTES & CROSS-REFERENCES 5

00146-025-F70Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

7M80-5Reference document

Same NSN cross-reference

Reference document — Secondary reference

SZ7583-5Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

CGR1601-0125-5Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

1966-014Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

Ready to buy ST7M251-5?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is ST7M251-5?

ST7M251-5 is a O-RING.

What parts can replace ST7M251-5?

There are 5 known substitutes for ST7M251-5: 00146-025-F70, 7M80-5, SZ7583-5 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for ST7M251-5?

ST7M251-5 is cataloged in the U.S. Government catalog under NSN 5331-01-494-7451. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

ST7M251-5 — O-RING

Request a Quote — ST7M251-5