PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21307Ring Set,discharge

Alfa Laval Inc · NSN 4330-00-213-0369 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-00-213-0369 — this item is cataloged by the U.S. Government under National Stock Number 4330-00-213-0369. Primary manufacturer part number: 21307.
Features
  • Ring Set,discharge — FSC 4330
  • General Characteristics Item Description: CONSIST OF TEN RINGS;ALL RINGS 3.855 IN. OD;2.445 IN. TO 3.145 IN. ID;MATL 0.056 IN. THK IN
  • 6 verified cross-references
  • Primary manufacturer: Alfa Laval Inc
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring Set,discharge, cataloged under National Stock Number 4330-00-213-0369, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Alfa Laval Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4330-00-213-0369
Primary Part Number21307
Item NameRing Set,discharge
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerAlfa Laval Inc
StatusACTIVE
General Characteristics Item DescriptionCONSIST OF TEN RINGS;ALL RINGS 3.855 IN. OD;2.445 IN. TO 3.145 IN. ID;MATL 0.056 IN. THK IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5360-00-134-865821307 INTERCHANGEABLE
Spring,helical,compression
Barksdale, Inc
3110-00-198-262614256P11 INTERCHANGEABLE
Bearing,roller,self-Aligning
Taylor Machine Works Inc
9540-00-933-9374 INTERCHANGEABLE
Angle,structural
4820-01-416-5633 INTERCHANGEABLE
Valve,linear,directional Control
8460-01-445-8821AC10010 INTERCHANGEABLE
Brief Case
Tnt Inc. Dba Manufacturer's Direct Div Manufacturer's Direct
6515-01-592-9852 INTERCHANGEABLE
Suture,absorbable,surgical
Cross-Reference Index
Part NumberManufacturer
A2045PC109 Alfa Laval Inc (USA)
21307 PRIMARY Alfa Laval Inc (USA)
A1990PC109 Alfa Laval Inc (USA)
A908PC101 Alfa Laval Inc (USA)
A1911PC109 Alfa Laval Inc (USA)
A1940PC2 Alfa Laval Inc (USA)
Related Parts
5360-00-134-8658INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21307
3110-00-198-2626INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
14256P11
9540-00-933-9374INTERCHANGEABLE
ANGLE,STRUCTURAL
4820-01-416-5633INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
8460-01-445-8821INTERCHANGEABLE
BRIEF CASE
AC10010
6515-01-592-9852INTERCHANGEABLE
SUTURE,ABSORBABLE,SURGICAL

Frequently Asked Questions

What is NSN 4330-00-213-0369?

NSN 4330-00-213-0369 is a Ring Set,discharge, manufactured by Alfa Laval Inc, classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-00-213-0369?

NSN 4330-00-213-0369 has 6 cross-referenced part numbers: A2045PC109 (Alfa Laval Inc), 21307 (Alfa Laval Inc), A1990PC109 (Alfa Laval Inc), A908PC101 (Alfa Laval Inc), A1911PC109 (Alfa Laval Inc) and 1 more.

What NSN replaces 4330-00-213-0369?

There are 6 known substitutes for 4330-00-213-0369: 5360-00-134-8658, 3110-00-198-2626, 9540-00-933-9374 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21307?

Key specifications for 21307: General Characteristics Item Description: CONSIST OF TEN RINGS;ALL RINGS 3.855 IN. OD;2.445 IN. TO 3.145 IN. ID;MATL 0.056 IN. THK IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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