Knob5355-01-503-8121

NSN 5355-01-503-8121 · NIIN 015038121 · Part number 6121K511

Mcmaster-Carr Supply Co · FSC 5355 — Knobs and Pointers · FSG 53 — Hardware and Abrasives · CAGE 39428

Government record, cited

NSN 5355-01-503-8121 — this item is cataloged by the U.S. Government under National Stock Number 5355-01-503-8121. Manufacturer of record part number: 6121K511.

Also searched as 5355-01-503-8121 · 5355015038121 · NIIN 015038121 · 01-503-8121 · FSC 5355 Knobs and Pointers · CAGE 39428 · 6121K511

Nearby stock numbers ← 5355-01-503-7724 Lock, Shaft · 5355-01-503-8553 Window, Dial →

Features

Knob — FSC 5355
Overall Thickness: 1.000 INCHES NOMINAL IN
Outside Diameter: 1.500 INCHES NOMINAL IN
Material: STEEL
Attachment Method: HOLE
1 manufacturer part number on file
Manufacturer of record: Mcmaster-Carr Supply Co

Identification

NSN: 5355-01-503-8121
NIIN: 015038121
FSC: 5355 — Knobs and Pointers
FSG: 53 — Hardware and Abrasives
Primary part number: 6121K511
Manufacturer: Mcmaster-Carr Supply Co

General Description

The Knob, cataloged under National Stock Number 5355-01-503-8121, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5355-01-503-8121
Primary Part Number	6121K511
Item Name	Knob
FSC / FSG	5355 / 53 — Knobs and Pointers
Manufacturer	Mcmaster-Carr Supply Co
Status	ACTIVE
Overall Thickness	1.000 INCHES NOMINAL IN
Outside Diameter	1.500 INCHES NOMINAL IN
Material	STEEL
Attachment Method	HOLE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
6121K511 PRIMARY	Mcmaster-Carr Supply Co (USA)

No interchangeability data on file.

Other items in FSC 5355 — Knobs and Pointers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5355-00-000-5777

5355-00-000-5777 · Item name not on file

5355-00-001-2029

DIAL,SCALE

5355-00-001-2403

WINDOW,DIAL

5355-00-001-4109

5355-00-001-4109 · Item name not on file

5355-00-001-4677

DIAL,SCALE

5355-00-001-4724

KNOB

5355-00-001-4730

5355-00-001-4730 · Item name not on file

5355-00-001-4734

5355-00-001-4734 · Item name not on file

Frequently Asked Questions

What is NSN 5355-01-503-8121?

NSN 5355-01-503-8121 is a Knob, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5355, Knobs and Pointers. Status: active.

What part numbers are listed for NSN 5355-01-503-8121?

NSN 5355-01-503-8121 has 1 manufacturer part number on file: 6121K511 (Mcmaster-Carr Supply Co).

What are the specifications of 6121K511?

Key specifications for 6121K511: Overall Thickness: 1.000 INCHES NOMINAL IN; Outside Diameter: 1.500 INCHES NOMINAL IN; Special Features: KNURLED RIM; 0.312-18 THREADED THRU HOLE; Material: STEEL. 4 specifications are documented in the U.S. Government catalog.

Is NSN 5355-01-503-8121 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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